Home / 121,024.95-181,371.35-76,572.12

Finding the Fourth Proportional to 121,024.95, 181,371.35 and 76,572.12

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Solution

The fourth proportional to 121,024.95, 181,371.35 and 76,572.12 is: 114,753.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,024.95 : 181,371.35 = 76,572.12 : x
  2. Step 2: Convert to fraction form
    121,024.95/181,371.35 = 76,572.12/x
  3. Step 3: Cross multiply
    121,024.95x = 181,371.35 × 76,572.12
  4. Step 4: Simplify right side
    121,024.95x = 13,887,989,330.97
  5. Step 5: Solve for x
    x = 13,887,989,330.97/121,024.95
  6. Step 6: Final answer
    x = 114,753.11

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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.