Home / 238,882.60-358,302.30-81,116.20

Finding the Fourth Proportional to 238,882.60, 358,302.30 and 81,116.20

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Solution

The fourth proportional to 238,882.60, 358,302.30 and 81,116.20 is: 121,666.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,882.60 : 358,302.30 = 81,116.20 : x
  2. Step 2: Convert to fraction form
    238,882.60/358,302.30 = 81,116.20/x
  3. Step 3: Cross multiply
    238,882.60x = 358,302.30 × 81,116.20
  4. Step 4: Simplify right side
    238,882.60x = 29,064,121,027.26
  5. Step 5: Solve for x
    x = 29,064,121,027.26/238,882.60
  6. Step 6: Final answer
    x = 121,666.97

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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.