Home / 138,544.16-207,751.65-71,966.41

Finding the Fourth Proportional to 138,544.16, 207,751.65 and 71,966.41

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Solution

The fourth proportional to 138,544.16, 207,751.65 and 71,966.41 is: 107,916.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,544.16 : 207,751.65 = 71,966.41 : x
  2. Step 2: Convert to fraction form
    138,544.16/207,751.65 = 71,966.41/x
  3. Step 3: Cross multiply
    138,544.16x = 207,751.65 × 71,966.41
  4. Step 4: Simplify right side
    138,544.16x = 14,951,140,037.63
  5. Step 5: Solve for x
    x = 14,951,140,037.63/138,544.16
  6. Step 6: Final answer
    x = 107,916.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.