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Finding the Fourth Proportional to 160,031.10, 220,825.05 and 88,393.20

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Solution

The fourth proportional to 160,031.10, 220,825.05 and 88,393.20 is: 121,972.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,031.10 : 220,825.05 = 88,393.20 : x
  2. Step 2: Convert to fraction form
    160,031.10/220,825.05 = 88,393.20/x
  3. Step 3: Cross multiply
    160,031.10x = 220,825.05 × 88,393.20
  4. Step 4: Simplify right side
    160,031.10x = 19,519,432,809.66
  5. Step 5: Solve for x
    x = 19,519,432,809.66/160,031.10
  6. Step 6: Final answer
    x = 121,972.75

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1.5x scale

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.