Home / 104,119.20-156,178.80-51,631.20

Finding the Fourth Proportional to 104,119.20, 156,178.80 and 51,631.20

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Solution

The fourth proportional to 104,119.20, 156,178.80 and 51,631.20 is: 77,446.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,119.20 : 156,178.80 = 51,631.20 : x
  2. Step 2: Convert to fraction form
    104,119.20/156,178.80 = 51,631.20/x
  3. Step 3: Cross multiply
    104,119.20x = 156,178.80 × 51,631.20
  4. Step 4: Simplify right side
    104,119.20x = 8,063,698,858.56
  5. Step 5: Solve for x
    x = 8,063,698,858.56/104,119.20
  6. Step 6: Final answer
    x = 77,446.80

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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.