Home / 154,508.31-231,726.15-87,069.74

Finding the Fourth Proportional to 154,508.31, 231,726.15 and 87,069.74

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Solution

The fourth proportional to 154,508.31, 231,726.15 and 87,069.74 is: 130,584.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,508.31 : 231,726.15 = 87,069.74 : x
  2. Step 2: Convert to fraction form
    154,508.31/231,726.15 = 87,069.74/x
  3. Step 3: Cross multiply
    154,508.31x = 231,726.15 × 87,069.74
  4. Step 4: Simplify right side
    154,508.31x = 20,176,334,473.07
  5. Step 5: Solve for x
    x = 20,176,334,473.07/154,508.31
  6. Step 6: Final answer
    x = 130,584.14

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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.