Home / 131,517.95-181,512.54-74,169.06

Finding the Fourth Proportional to 131,517.95, 181,512.54 and 74,169.06

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Solution

The fourth proportional to 131,517.95, 181,512.54 and 74,169.06 is: 102,363.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,517.95 : 181,512.54 = 74,169.06 : x
  2. Step 2: Convert to fraction form
    131,517.95/181,512.54 = 74,169.06/x
  3. Step 3: Cross multiply
    131,517.95x = 181,512.54 × 74,169.06
  4. Step 4: Simplify right side
    131,517.95x = 13,462,614,470.01
  5. Step 5: Solve for x
    x = 13,462,614,470.01/131,517.95
  6. Step 6: Final answer
    x = 102,363.33

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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.