Home / 129,557.13-194,335.70-74,114.25

Finding the Fourth Proportional to 129,557.13, 194,335.70 and 74,114.25

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Solution

The fourth proportional to 129,557.13, 194,335.70 and 74,114.25 is: 111,171.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,557.13 : 194,335.70 = 74,114.25 : x
  2. Step 2: Convert to fraction form
    129,557.13/194,335.70 = 74,114.25/x
  3. Step 3: Cross multiply
    129,557.13x = 194,335.70 × 74,114.25
  4. Step 4: Simplify right side
    129,557.13x = 14,403,044,283.15
  5. Step 5: Solve for x
    x = 14,403,044,283.15/129,557.13
  6. Step 6: Final answer
    x = 111,171.38

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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.