Home / 138,725.22-191,440.89-75,062.88

Finding the Fourth Proportional to 138,725.22, 191,440.89 and 75,062.88

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Solution

The fourth proportional to 138,725.22, 191,440.89 and 75,062.88 is: 103,586.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,725.22 : 191,440.89 = 75,062.88 : x
  2. Step 2: Convert to fraction form
    138,725.22/191,440.89 = 75,062.88/x
  3. Step 3: Cross multiply
    138,725.22x = 191,440.89 × 75,062.88
  4. Step 4: Simplify right side
    138,725.22x = 14,370,104,553.16
  5. Step 5: Solve for x
    x = 14,370,104,553.16/138,725.22
  6. Step 6: Final answer
    x = 103,586.82

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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.