Home / 120,581.52-166,387.08-66,866.16

Finding the Fourth Proportional to 120,581.52, 166,387.08 and 66,866.16

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Solution

The fourth proportional to 120,581.52, 166,387.08 and 66,866.16 is: 92,266.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,581.52 : 166,387.08 = 66,866.16 : x
  2. Step 2: Convert to fraction form
    120,581.52/166,387.08 = 66,866.16/x
  3. Step 3: Cross multiply
    120,581.52x = 166,387.08 × 66,866.16
  4. Step 4: Simplify right side
    120,581.52x = 11,125,665,113.21
  5. Step 5: Solve for x
    x = 11,125,665,113.21/120,581.52
  6. Step 6: Final answer
    x = 92,266.75

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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.