Home / 151,679.20-209,358.93-88,037.50

Finding the Fourth Proportional to 151,679.20, 209,358.93 and 88,037.50

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Solution

The fourth proportional to 151,679.20, 209,358.93 and 88,037.50 is: 121,515.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,679.20 : 209,358.93 = 88,037.50 : x
  2. Step 2: Convert to fraction form
    151,679.20/209,358.93 = 88,037.50/x
  3. Step 3: Cross multiply
    151,679.20x = 209,358.93 × 88,037.50
  4. Step 4: Simplify right side
    151,679.20x = 18,431,436,799.88
  5. Step 5: Solve for x
    x = 18,431,436,799.88/151,679.20
  6. Step 6: Final answer
    x = 121,515.92

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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.