Home / 238,717.65-329,432.55-129,823.01

Finding the Fourth Proportional to 238,717.65, 329,432.55 and 129,823.01

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Solution

The fourth proportional to 238,717.65, 329,432.55 and 129,823.01 is: 179,156.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,717.65 : 329,432.55 = 129,823.01 : x
  2. Step 2: Convert to fraction form
    238,717.65/329,432.55 = 129,823.01/x
  3. Step 3: Cross multiply
    238,717.65x = 329,432.55 × 129,823.01
  4. Step 4: Simplify right side
    238,717.65x = 42,767,925,232.98
  5. Step 5: Solve for x
    x = 42,767,925,232.98/238,717.65
  6. Step 6: Final answer
    x = 179,156.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.