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Finding the Fourth Proportional to 149,752.76, 206,657.22 and 81,769.52

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Solution

The fourth proportional to 149,752.76, 206,657.22 and 81,769.52 is: 112,841.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,752.76 : 206,657.22 = 81,769.52 : x
  2. Step 2: Convert to fraction form
    149,752.76/206,657.22 = 81,769.52/x
  3. Step 3: Cross multiply
    149,752.76x = 206,657.22 × 81,769.52
  4. Step 4: Simplify right side
    149,752.76x = 16,898,261,683.93
  5. Step 5: Solve for x
    x = 16,898,261,683.93/149,752.76
  6. Step 6: Final answer
    x = 112,841.07

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1.5x scale

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.