Home / 124,877.10-187,315.65-40,645.20

Finding the Fourth Proportional to 124,877.10, 187,315.65 and 40,645.20

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Solution

The fourth proportional to 124,877.10, 187,315.65 and 40,645.20 is: 60,967.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,877.10 : 187,315.65 = 40,645.20 : x
  2. Step 2: Convert to fraction form
    124,877.10/187,315.65 = 40,645.20/x
  3. Step 3: Cross multiply
    124,877.10x = 187,315.65 × 40,645.20
  4. Step 4: Simplify right side
    124,877.10x = 7,613,482,057.38
  5. Step 5: Solve for x
    x = 7,613,482,057.38/124,877.10
  6. Step 6: Final answer
    x = 60,967.80

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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.