Home / 152,767.71-229,151.16-86,177.61

Finding the Fourth Proportional to 152,767.71, 229,151.16 and 86,177.61

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Solution

The fourth proportional to 152,767.71, 229,151.16 and 86,177.61 is: 129,266.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,767.71 : 229,151.16 = 86,177.61 : x
  2. Step 2: Convert to fraction form
    152,767.71/229,151.16 = 86,177.61/x
  3. Step 3: Cross multiply
    152,767.71x = 229,151.16 × 86,177.61
  4. Step 4: Simplify right side
    152,767.71x = 19,747,699,297.53
  5. Step 5: Solve for x
    x = 19,747,699,297.53/152,767.71
  6. Step 6: Final answer
    x = 129,266.19

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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.