Home / 125,096.67-172,663.83-77,321.25

Finding the Fourth Proportional to 125,096.67, 172,663.83 and 77,321.25

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Solution

The fourth proportional to 125,096.67, 172,663.83 and 77,321.25 is: 106,722.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,096.67 : 172,663.83 = 77,321.25 : x
  2. Step 2: Convert to fraction form
    125,096.67/172,663.83 = 77,321.25/x
  3. Step 3: Cross multiply
    125,096.67x = 172,663.83 × 77,321.25
  4. Step 4: Simplify right side
    125,096.67x = 13,350,583,165.39
  5. Step 5: Solve for x
    x = 13,350,583,165.39/125,096.67
  6. Step 6: Final answer
    x = 106,722.13

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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.