Home / 102,497.82-141,447.21-57,174.66

Finding the Fourth Proportional to 102,497.82, 141,447.21 and 57,174.66

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Solution

The fourth proportional to 102,497.82, 141,447.21 and 57,174.66 is: 78,901.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,497.82 : 141,447.21 = 57,174.66 : x
  2. Step 2: Convert to fraction form
    102,497.82/141,447.21 = 57,174.66/x
  3. Step 3: Cross multiply
    102,497.82x = 141,447.21 × 57,174.66
  4. Step 4: Simplify right side
    102,497.82x = 8,087,196,139.70
  5. Step 5: Solve for x
    x = 8,087,196,139.70/102,497.82
  6. Step 6: Final answer
    x = 78,901.15

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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.