Home / 124,938.74-172,419.53-68,350.12

Finding the Fourth Proportional to 124,938.74, 172,419.53 and 68,350.12

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Solution

The fourth proportional to 124,938.74, 172,419.53 and 68,350.12 is: 94,325.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,938.74 : 172,419.53 = 68,350.12 : x
  2. Step 2: Convert to fraction form
    124,938.74/172,419.53 = 68,350.12/x
  3. Step 3: Cross multiply
    124,938.74x = 172,419.53 × 68,350.12
  4. Step 4: Simplify right side
    124,938.74x = 11,784,894,793.04
  5. Step 5: Solve for x
    x = 11,784,894,793.04/124,938.74
  6. Step 6: Final answer
    x = 94,325.38

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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.