Home / 115,833.20-159,867.96-83,990.48

Finding the Fourth Proportional to 115,833.20, 159,867.96 and 83,990.48

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Solution

The fourth proportional to 115,833.20, 159,867.96 and 83,990.48 is: 115,920.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,833.20 : 159,867.96 = 83,990.48 : x
  2. Step 2: Convert to fraction form
    115,833.20/159,867.96 = 83,990.48/x
  3. Step 3: Cross multiply
    115,833.20x = 159,867.96 × 83,990.48
  4. Step 4: Simplify right side
    115,833.20x = 13,427,386,697.02
  5. Step 5: Solve for x
    x = 13,427,386,697.02/115,833.20
  6. Step 6: Final answer
    x = 115,920.02

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1.5x scale

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.