Home / 121,333.28-181,884.72-42,396.08

Finding the Fourth Proportional to 121,333.28, 181,884.72 and 42,396.08

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Solution

The fourth proportional to 121,333.28, 181,884.72 and 42,396.08 is: 63,553.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,333.28 : 181,884.72 = 42,396.08 : x
  2. Step 2: Convert to fraction form
    121,333.28/181,884.72 = 42,396.08/x
  3. Step 3: Cross multiply
    121,333.28x = 181,884.72 × 42,396.08
  4. Step 4: Simplify right side
    121,333.28x = 7,711,199,139.90
  5. Step 5: Solve for x
    x = 7,711,199,139.90/121,333.28
  6. Step 6: Final answer
    x = 63,553.87

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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.