Home / 134,640.60-185,981.50-100,589.92

Finding the Fourth Proportional to 134,640.60, 185,981.50 and 100,589.92

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Solution

The fourth proportional to 134,640.60, 185,981.50 and 100,589.92 is: 138,946.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,640.60 : 185,981.50 = 100,589.92 : x
  2. Step 2: Convert to fraction form
    134,640.60/185,981.50 = 100,589.92/x
  3. Step 3: Cross multiply
    134,640.60x = 185,981.50 × 100,589.92
  4. Step 4: Simplify right side
    134,640.60x = 18,707,864,206.48
  5. Step 5: Solve for x
    x = 18,707,864,206.48/134,640.60
  6. Step 6: Final answer
    x = 138,946.68

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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.