Home / 104,995,391.20-157,493,086.80-85,847,768.80

Finding the Fourth Proportional to 104,995,391.20, 157,493,086.80 and 85,847,768.80

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Solution

The fourth proportional to 104,995,391.20, 157,493,086.80 and 85,847,768.80 is: 128,771,653.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,995,391.20 : 157,493,086.80 = 85,847,768.80 : x
  2. Step 2: Convert to fraction form
    104,995,391.20/157,493,086.80 = 85,847,768.80/x
  3. Step 3: Cross multiply
    104,995,391.20x = 157,493,086.80 × 85,847,768.80
  4. Step 4: Simplify right side
    104,995,391.20x = 13,520,430,103,204,732
  5. Step 5: Solve for x
    x = 13,520,430,103,204,732/104,995,391.20
  6. Step 6: Final answer
    x = 128,771,653.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.