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Finding the Fourth Proportional to 168,395.18, 252,411.98 and 83,988.59

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Solution

The fourth proportional to 168,395.18, 252,411.98 and 83,988.59 is: 125,892.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,395.18 : 252,411.98 = 83,988.59 : x
  2. Step 2: Convert to fraction form
    168,395.18/252,411.98 = 83,988.59/x
  3. Step 3: Cross multiply
    168,395.18x = 252,411.98 × 83,988.59
  4. Step 4: Simplify right side
    168,395.18x = 21,199,724,617.31
  5. Step 5: Solve for x
    x = 21,199,724,617.31/168,395.18
  6. Step 6: Final answer
    x = 125,892.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.