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Finding the Fourth Proportional to 136,370.64, 188,153.46 and 87,952.08

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Solution

The fourth proportional to 136,370.64, 188,153.46 and 87,952.08 is: 121,349.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,370.64 : 188,153.46 = 87,952.08 : x
  2. Step 2: Convert to fraction form
    136,370.64/188,153.46 = 87,952.08/x
  3. Step 3: Cross multiply
    136,370.64x = 188,153.46 × 87,952.08
  4. Step 4: Simplify right side
    136,370.64x = 16,548,488,166.20
  5. Step 5: Solve for x
    x = 16,548,488,166.20/136,370.64
  6. Step 6: Final answer
    x = 121,349.35

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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.