Home / 131,970.74-182,121.90-75,382.52

Finding the Fourth Proportional to 131,970.74, 182,121.90 and 75,382.52

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Solution

The fourth proportional to 131,970.74, 182,121.90 and 75,382.52 is: 104,029.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,970.74 : 182,121.90 = 75,382.52 : x
  2. Step 2: Convert to fraction form
    131,970.74/182,121.90 = 75,382.52/x
  3. Step 3: Cross multiply
    131,970.74x = 182,121.90 × 75,382.52
  4. Step 4: Simplify right side
    131,970.74x = 13,728,807,769.19
  5. Step 5: Solve for x
    x = 13,728,807,769.19/131,970.74
  6. Step 6: Final answer
    x = 104,029.18

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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.