Home / 153,142.16-229,724.18-40,821.80

Finding the Fourth Proportional to 153,142.16, 229,724.18 and 40,821.80

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Solution

The fourth proportional to 153,142.16, 229,724.18 and 40,821.80 is: 61,235.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,142.16 : 229,724.18 = 40,821.80 : x
  2. Step 2: Convert to fraction form
    153,142.16/229,724.18 = 40,821.80/x
  3. Step 3: Cross multiply
    153,142.16x = 229,724.18 × 40,821.80
  4. Step 4: Simplify right side
    153,142.16x = 9,377,754,058.87
  5. Step 5: Solve for x
    x = 9,377,754,058.87/153,142.16
  6. Step 6: Final answer
    x = 61,235.61

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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.