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Finding the Fourth Proportional to 131,752.95, 181,818.87 and 71,323.58

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Solution

The fourth proportional to 131,752.95, 181,818.87 and 71,323.58 is: 98,426.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,752.95 : 181,818.87 = 71,323.58 : x
  2. Step 2: Convert to fraction form
    131,752.95/181,818.87 = 71,323.58/x
  3. Step 3: Cross multiply
    131,752.95x = 181,818.87 × 71,323.58
  4. Step 4: Simplify right side
    131,752.95x = 12,967,972,087.10
  5. Step 5: Solve for x
    x = 12,967,972,087.10/131,752.95
  6. Step 6: Final answer
    x = 98,426.42

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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.