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Finding the Fourth Proportional to 160,338.88, 240,702.72 and 75,031.30

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Solution

The fourth proportional to 160,338.88, 240,702.72 and 75,031.30 is: 112,637.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,338.88 : 240,702.72 = 75,031.30 : x
  2. Step 2: Convert to fraction form
    160,338.88/240,702.72 = 75,031.30/x
  3. Step 3: Cross multiply
    160,338.88x = 240,702.72 × 75,031.30
  4. Step 4: Simplify right side
    160,338.88x = 18,060,237,995.14
  5. Step 5: Solve for x
    x = 18,060,237,995.14/160,338.88
  6. Step 6: Final answer
    x = 112,637.92

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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.