Home / 120,572.54-166,398.63-66,862.70

Finding the Fourth Proportional to 120,572.54, 166,398.63 and 66,862.70

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Solution

The fourth proportional to 120,572.54, 166,398.63 and 66,862.70 is: 92,275.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,572.54 : 166,398.63 = 66,862.70 : x
  2. Step 2: Convert to fraction form
    120,572.54/166,398.63 = 66,862.70/x
  3. Step 3: Cross multiply
    120,572.54x = 166,398.63 × 66,862.70
  4. Step 4: Simplify right side
    120,572.54x = 11,125,861,678.10
  5. Step 5: Solve for x
    x = 11,125,861,678.10/120,572.54
  6. Step 6: Final answer
    x = 92,275.25

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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.