Home / 135,044.20-186,323.06-77,680.52

Finding the Fourth Proportional to 135,044.20, 186,323.06 and 77,680.52

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Solution

The fourth proportional to 135,044.20, 186,323.06 and 77,680.52 is: 107,177.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,044.20 : 186,323.06 = 77,680.52 : x
  2. Step 2: Convert to fraction form
    135,044.20/186,323.06 = 77,680.52/x
  3. Step 3: Cross multiply
    135,044.20x = 186,323.06 × 77,680.52
  4. Step 4: Simplify right side
    135,044.20x = 14,473,672,188.79
  5. Step 5: Solve for x
    x = 14,473,672,188.79/135,044.20
  6. Step 6: Final answer
    x = 107,177.30

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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.