Home / 152,423.71-229,049.21-81,395.75

Finding the Fourth Proportional to 152,423.71, 229,049.21 and 81,395.75

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Solution

The fourth proportional to 152,423.71, 229,049.21 and 81,395.75 is: 122,314.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,423.71 : 229,049.21 = 81,395.75 : x
  2. Step 2: Convert to fraction form
    152,423.71/229,049.21 = 81,395.75/x
  3. Step 3: Cross multiply
    152,423.71x = 229,049.21 × 81,395.75
  4. Step 4: Simplify right side
    152,423.71x = 18,643,633,010.97
  5. Step 5: Solve for x
    x = 18,643,633,010.97/152,423.71
  6. Step 6: Final answer
    x = 122,314.52

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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.