Home / 121,251.92-181,878.24-42,366.16

Finding the Fourth Proportional to 121,251.92, 181,878.24 and 42,366.16

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Solution

The fourth proportional to 121,251.92, 181,878.24 and 42,366.16 is: 63,549.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,251.92 : 181,878.24 = 42,366.16 : x
  2. Step 2: Convert to fraction form
    121,251.92/181,878.24 = 42,366.16/x
  3. Step 3: Cross multiply
    121,251.92x = 181,878.24 × 42,366.16
  4. Step 4: Simplify right side
    121,251.92x = 7,705,482,616.36
  5. Step 5: Solve for x
    x = 7,705,482,616.36/121,251.92
  6. Step 6: Final answer
    x = 63,549.37

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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.