Home / 115,720.86-173,301.02-80,082.34

Finding the Fourth Proportional to 115,720.86, 173,301.02 and 80,082.34

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Solution

The fourth proportional to 115,720.86, 173,301.02 and 80,082.34 is: 119,929.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,720.86 : 173,301.02 = 80,082.34 : x
  2. Step 2: Convert to fraction form
    115,720.86/173,301.02 = 80,082.34/x
  3. Step 3: Cross multiply
    115,720.86x = 173,301.02 × 80,082.34
  4. Step 4: Simplify right side
    115,720.86x = 13,878,350,805.58
  5. Step 5: Solve for x
    x = 13,878,350,805.58/115,720.86
  6. Step 6: Final answer
    x = 119,929.56

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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.