Home / 102,665.89-141,677.44-57,344.52

Finding the Fourth Proportional to 102,665.89, 141,677.44 and 57,344.52

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Solution

The fourth proportional to 102,665.89, 141,677.44 and 57,344.52 is: 79,134.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,665.89 : 141,677.44 = 57,344.52 : x
  2. Step 2: Convert to fraction form
    102,665.89/141,677.44 = 57,344.52/x
  3. Step 3: Cross multiply
    102,665.89x = 141,677.44 × 57,344.52
  4. Step 4: Simplify right side
    102,665.89x = 8,124,424,382.62
  5. Step 5: Solve for x
    x = 8,124,424,382.62/102,665.89
  6. Step 6: Final answer
    x = 79,134.60

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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.