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Finding the Fourth Proportional to 130,115.60, 179,487.79 and 89,850.50

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Solution

The fourth proportional to 130,115.60, 179,487.79 and 89,850.50 is: 123,944.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,115.60 : 179,487.79 = 89,850.50 : x
  2. Step 2: Convert to fraction form
    130,115.60/179,487.79 = 89,850.50/x
  3. Step 3: Cross multiply
    130,115.60x = 179,487.79 × 89,850.50
  4. Step 4: Simplify right side
    130,115.60x = 16,127,067,675.40
  5. Step 5: Solve for x
    x = 16,127,067,675.40/130,115.60
  6. Step 6: Final answer
    x = 123,944.15

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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.