Home / 113,290.25-156,348.17-74,983.80

Finding the Fourth Proportional to 113,290.25, 156,348.17 and 74,983.80

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Solution

The fourth proportional to 113,290.25, 156,348.17 and 74,983.80 is: 103,482.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,290.25 : 156,348.17 = 74,983.80 : x
  2. Step 2: Convert to fraction form
    113,290.25/156,348.17 = 74,983.80/x
  3. Step 3: Cross multiply
    113,290.25x = 156,348.17 × 74,983.80
  4. Step 4: Simplify right side
    113,290.25x = 11,723,580,384.28
  5. Step 5: Solve for x
    x = 11,723,580,384.28/113,290.25
  6. Step 6: Final answer
    x = 103,482.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.