Home / 115,766.11-159,710.20-75,465.73

Finding the Fourth Proportional to 115,766.11, 159,710.20 and 75,465.73

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Solution

The fourth proportional to 115,766.11, 159,710.20 and 75,465.73 is: 104,112.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,766.11 : 159,710.20 = 75,465.73 : x
  2. Step 2: Convert to fraction form
    115,766.11/159,710.20 = 75,465.73/x
  3. Step 3: Cross multiply
    115,766.11x = 159,710.20 × 75,465.73
  4. Step 4: Simplify right side
    115,766.11x = 12,052,646,831.45
  5. Step 5: Solve for x
    x = 12,052,646,831.45/115,766.11
  6. Step 6: Final answer
    x = 104,112.05

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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.