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Finding the Fourth Proportional to 120,171.52, 179,980.80 and 67,502.08

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Solution

The fourth proportional to 120,171.52, 179,980.80 and 67,502.08 is: 101,097.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,171.52 : 179,980.80 = 67,502.08 : x
  2. Step 2: Convert to fraction form
    120,171.52/179,980.80 = 67,502.08/x
  3. Step 3: Cross multiply
    120,171.52x = 179,980.80 × 67,502.08
  4. Step 4: Simplify right side
    120,171.52x = 12,149,078,360.06
  5. Step 5: Solve for x
    x = 12,149,078,360.06/120,171.52
  6. Step 6: Final answer
    x = 101,097.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.