Home / 138,179.60-207,257.48-84,130.27

Finding the Fourth Proportional to 138,179.60, 207,257.48 and 84,130.27

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Solution

The fourth proportional to 138,179.60, 207,257.48 and 84,130.27 is: 126,188.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,179.60 : 207,257.48 = 84,130.27 : x
  2. Step 2: Convert to fraction form
    138,179.60/207,257.48 = 84,130.27/x
  3. Step 3: Cross multiply
    138,179.60x = 207,257.48 × 84,130.27
  4. Step 4: Simplify right side
    138,179.60x = 17,436,628,184.76
  5. Step 5: Solve for x
    x = 17,436,628,184.76/138,179.60
  6. Step 6: Final answer
    x = 126,188.15

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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.