Home / 151,008.30-208,375.20-87,333.66

Finding the Fourth Proportional to 151,008.30, 208,375.20 and 87,333.66

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Solution

The fourth proportional to 151,008.30, 208,375.20 and 87,333.66 is: 120,511.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,008.30 : 208,375.20 = 87,333.66 : x
  2. Step 2: Convert to fraction form
    151,008.30/208,375.20 = 87,333.66/x
  3. Step 3: Cross multiply
    151,008.30x = 208,375.20 × 87,333.66
  4. Step 4: Simplify right side
    151,008.30x = 18,198,168,869.23
  5. Step 5: Solve for x
    x = 18,198,168,869.23/151,008.30
  6. Step 6: Final answer
    x = 120,511.05

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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.