Home / 115,270.48-172,821.68-77,737.28

Finding the Fourth Proportional to 115,270.48, 172,821.68 and 77,737.28

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Solution

The fourth proportional to 115,270.48, 172,821.68 and 77,737.28 is: 116,549.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,270.48 : 172,821.68 = 77,737.28 : x
  2. Step 2: Convert to fraction form
    115,270.48/172,821.68 = 77,737.28/x
  3. Step 3: Cross multiply
    115,270.48x = 172,821.68 × 77,737.28
  4. Step 4: Simplify right side
    115,270.48x = 13,434,687,328.23
  5. Step 5: Solve for x
    x = 13,434,687,328.23/115,270.48
  6. Step 6: Final answer
    x = 116,549.24

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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.