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Finding the Fourth Proportional to 138,527.28, 191,079 and 96,070.32

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Solution

The fourth proportional to 138,527.28, 191,079 and 96,070.32 is: 132,515.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,527.28 : 191,079 = 96,070.32 : x
  2. Step 2: Convert to fraction form
    138,527.28/191,079 = 96,070.32/x
  3. Step 3: Cross multiply
    138,527.28x = 191,079 × 96,070.32
  4. Step 4: Simplify right side
    138,527.28x = 18,357,020,675.28
  5. Step 5: Solve for x
    x = 18,357,020,675.28/138,527.28
  6. Step 6: Final answer
    x = 132,515.56

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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.