Home / 239,495.08-359,279.52-81,686.66

Finding the Fourth Proportional to 239,495.08, 359,279.52 and 81,686.66

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Solution

The fourth proportional to 239,495.08, 359,279.52 and 81,686.66 is: 122,542.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,495.08 : 359,279.52 = 81,686.66 : x
  2. Step 2: Convert to fraction form
    239,495.08/359,279.52 = 81,686.66/x
  3. Step 3: Cross multiply
    239,495.08x = 359,279.52 × 81,686.66
  4. Step 4: Simplify right side
    239,495.08x = 29,348,343,995.20
  5. Step 5: Solve for x
    x = 29,348,343,995.20/239,495.08
  6. Step 6: Final answer
    x = 122,542.58

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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.