Home / 123,929.28-171,023.48-67,340.66

Finding the Fourth Proportional to 123,929.28, 171,023.48 and 67,340.66

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Solution

The fourth proportional to 123,929.28, 171,023.48 and 67,340.66 is: 92,930.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,929.28 : 171,023.48 = 67,340.66 : x
  2. Step 2: Convert to fraction form
    123,929.28/171,023.48 = 67,340.66/x
  3. Step 3: Cross multiply
    123,929.28x = 171,023.48 × 67,340.66
  4. Step 4: Simplify right side
    123,929.28x = 11,516,834,018.70
  5. Step 5: Solve for x
    x = 11,516,834,018.70/123,929.28
  6. Step 6: Final answer
    x = 92,930.69

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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.