Home / 121,027.68-181,483.92-42,132.24

Finding the Fourth Proportional to 121,027.68, 181,483.92 and 42,132.24

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Solution

The fourth proportional to 121,027.68, 181,483.92 and 42,132.24 is: 63,178.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,027.68 : 181,483.92 = 42,132.24 : x
  2. Step 2: Convert to fraction form
    121,027.68/181,483.92 = 42,132.24/x
  3. Step 3: Cross multiply
    121,027.68x = 181,483.92 × 42,132.24
  4. Step 4: Simplify right side
    121,027.68x = 7,646,324,073.58
  5. Step 5: Solve for x
    x = 7,646,324,073.58/121,027.68
  6. Step 6: Final answer
    x = 63,178.31

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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.