Home / 104,977.40-157,466.10-78,733.40

Finding the Fourth Proportional to 104,977.40, 157,466.10 and 78,733.40

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Solution

The fourth proportional to 104,977.40, 157,466.10 and 78,733.40 is: 118,100.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,977.40 : 157,466.10 = 78,733.40 : x
  2. Step 2: Convert to fraction form
    104,977.40/157,466.10 = 78,733.40/x
  3. Step 3: Cross multiply
    104,977.40x = 157,466.10 × 78,733.40
  4. Step 4: Simplify right side
    104,977.40x = 12,397,841,437.74
  5. Step 5: Solve for x
    x = 12,397,841,437.74/104,977.40
  6. Step 6: Final answer
    x = 118,100.10

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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.