Home / 102,869.87-141,988.95-59,857.65

Finding the Fourth Proportional to 102,869.87, 141,988.95 and 59,857.65

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Solution

The fourth proportional to 102,869.87, 141,988.95 and 59,857.65 is: 82,620.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,869.87 : 141,988.95 = 59,857.65 : x
  2. Step 2: Convert to fraction form
    102,869.87/141,988.95 = 59,857.65/x
  3. Step 3: Cross multiply
    102,869.87x = 141,988.95 × 59,857.65
  4. Step 4: Simplify right side
    102,869.87x = 8,499,124,872.97
  5. Step 5: Solve for x
    x = 8,499,124,872.97/102,869.87
  6. Step 6: Final answer
    x = 82,620.16

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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.