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Finding the Fourth Proportional to 134,478.92, 185,525.25 and 80,020.22

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Solution

The fourth proportional to 134,478.92, 185,525.25 and 80,020.22 is: 110,394.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,478.92 : 185,525.25 = 80,020.22 : x
  2. Step 2: Convert to fraction form
    134,478.92/185,525.25 = 80,020.22/x
  3. Step 3: Cross multiply
    134,478.92x = 185,525.25 × 80,020.22
  4. Step 4: Simplify right side
    134,478.92x = 14,845,771,320.56
  5. Step 5: Solve for x
    x = 14,845,771,320.56/134,478.92
  6. Step 6: Final answer
    x = 110,394.78

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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.