Home / 109,546.52-151,138.86-86,503.20

Finding the Fourth Proportional to 109,546.52, 151,138.86 and 86,503.20

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Solution

The fourth proportional to 109,546.52, 151,138.86 and 86,503.20 is: 119,346.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,546.52 : 151,138.86 = 86,503.20 : x
  2. Step 2: Convert to fraction form
    109,546.52/151,138.86 = 86,503.20/x
  3. Step 3: Cross multiply
    109,546.52x = 151,138.86 × 86,503.20
  4. Step 4: Simplify right side
    109,546.52x = 13,073,995,034.35
  5. Step 5: Solve for x
    x = 13,073,995,034.35/109,546.52
  6. Step 6: Final answer
    x = 119,346.51

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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.