Home / 138,026.06-207,228.64-71,512.10

Finding the Fourth Proportional to 138,026.06, 207,228.64 and 71,512.10

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Solution

The fourth proportional to 138,026.06, 207,228.64 and 71,512.10 is: 107,366.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,026.06 : 207,228.64 = 71,512.10 : x
  2. Step 2: Convert to fraction form
    138,026.06/207,228.64 = 71,512.10/x
  3. Step 3: Cross multiply
    138,026.06x = 207,228.64 × 71,512.10
  4. Step 4: Simplify right side
    138,026.06x = 14,819,355,226.54
  5. Step 5: Solve for x
    x = 14,819,355,226.54/138,026.06
  6. Step 6: Final answer
    x = 107,366.36

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1.5x scale

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.