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Finding the Fourth Proportional to 168,055.40, 252,374.70 and 89,323.40

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Solution

The fourth proportional to 168,055.40, 252,374.70 and 89,323.40 is: 134,140.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,055.40 : 252,374.70 = 89,323.40 : x
  2. Step 2: Convert to fraction form
    168,055.40/252,374.70 = 89,323.40/x
  3. Step 3: Cross multiply
    168,055.40x = 252,374.70 × 89,323.40
  4. Step 4: Simplify right side
    168,055.40x = 22,542,966,277.98
  5. Step 5: Solve for x
    x = 22,542,966,277.98/168,055.40
  6. Step 6: Final answer
    x = 134,140.09

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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.