Home / 121,143.20-181,722.08-38,037.20

Finding the Fourth Proportional to 121,143.20, 181,722.08 and 38,037.20

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Solution

The fourth proportional to 121,143.20, 181,722.08 and 38,037.20 is: 57,058.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,143.20 : 181,722.08 = 38,037.20 : x
  2. Step 2: Convert to fraction form
    121,143.20/181,722.08 = 38,037.20/x
  3. Step 3: Cross multiply
    121,143.20x = 181,722.08 × 38,037.20
  4. Step 4: Simplify right side
    121,143.20x = 6,912,198,002.58
  5. Step 5: Solve for x
    x = 6,912,198,002.58/121,143.20
  6. Step 6: Final answer
    x = 57,058.08

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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.