Home / 115,873.19-159,921.19-83,711.85

Finding the Fourth Proportional to 115,873.19, 159,921.19 and 83,711.85

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Solution

The fourth proportional to 115,873.19, 159,921.19 and 83,711.85 is: 115,534.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,873.19 : 159,921.19 = 83,711.85 : x
  2. Step 2: Convert to fraction form
    115,873.19/159,921.19 = 83,711.85/x
  3. Step 3: Cross multiply
    115,873.19x = 159,921.19 × 83,711.85
  4. Step 4: Simplify right side
    115,873.19x = 13,387,298,669.10
  5. Step 5: Solve for x
    x = 13,387,298,669.10/115,873.19
  6. Step 6: Final answer
    x = 115,534.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.