Home / 123,411.52-170,308.02-66,822.76

Finding the Fourth Proportional to 123,411.52, 170,308.02 and 66,822.76

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Solution

The fourth proportional to 123,411.52, 170,308.02 and 66,822.76 is: 92,215.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,411.52 : 170,308.02 = 66,822.76 : x
  2. Step 2: Convert to fraction form
    123,411.52/170,308.02 = 66,822.76/x
  3. Step 3: Cross multiply
    123,411.52x = 170,308.02 × 66,822.76
  4. Step 4: Simplify right side
    123,411.52x = 11,380,451,946.54
  5. Step 5: Solve for x
    x = 11,380,451,946.54/123,411.52
  6. Step 6: Final answer
    x = 92,215.48

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Double scale
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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.