Home / 238,547.57-329,196.35-131,128.61

Finding the Fourth Proportional to 238,547.57, 329,196.35 and 131,128.61

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Solution

The fourth proportional to 238,547.57, 329,196.35 and 131,128.61 is: 180,957.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,547.57 : 329,196.35 = 131,128.61 : x
  2. Step 2: Convert to fraction form
    238,547.57/329,196.35 = 131,128.61/x
  3. Step 3: Cross multiply
    238,547.57x = 329,196.35 × 131,128.61
  4. Step 4: Simplify right side
    238,547.57x = 43,167,058,474.41
  5. Step 5: Solve for x
    x = 43,167,058,474.41/238,547.57
  6. Step 6: Final answer
    x = 180,957.87

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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.