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Finding the Fourth Proportional to 124,610.80, 186,959.40 and 54,540.40

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Solution

The fourth proportional to 124,610.80, 186,959.40 and 54,540.40 is: 81,829.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,610.80 : 186,959.40 = 54,540.40 : x
  2. Step 2: Convert to fraction form
    124,610.80/186,959.40 = 54,540.40/x
  3. Step 3: Cross multiply
    124,610.80x = 186,959.40 × 54,540.40
  4. Step 4: Simplify right side
    124,610.80x = 10,196,840,459.76
  5. Step 5: Solve for x
    x = 10,196,840,459.76/124,610.80
  6. Step 6: Final answer
    x = 81,829.51

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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.