Home / 102,198.78-141,049.22-61,365.66

Finding the Fourth Proportional to 102,198.78, 141,049.22 and 61,365.66

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Solution

The fourth proportional to 102,198.78, 141,049.22 and 61,365.66 is: 84,693.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,198.78 : 141,049.22 = 61,365.66 : x
  2. Step 2: Convert to fraction form
    102,198.78/141,049.22 = 61,365.66/x
  3. Step 3: Cross multiply
    102,198.78x = 141,049.22 × 61,365.66
  4. Step 4: Simplify right side
    102,198.78x = 8,655,578,170.96
  5. Step 5: Solve for x
    x = 8,655,578,170.96/102,198.78
  6. Step 6: Final answer
    x = 84,693.56

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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.