Home / 102,274.45-141,114.96-61,979.38

Finding the Fourth Proportional to 102,274.45, 141,114.96 and 61,979.38

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Solution

The fourth proportional to 102,274.45, 141,114.96 and 61,979.38 is: 85,517.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,274.45 : 141,114.96 = 61,979.38 : x
  2. Step 2: Convert to fraction form
    102,274.45/141,114.96 = 61,979.38/x
  3. Step 3: Cross multiply
    102,274.45x = 141,114.96 × 61,979.38
  4. Step 4: Simplify right side
    102,274.45x = 8,746,217,376.74
  5. Step 5: Solve for x
    x = 8,746,217,376.74/102,274.45
  6. Step 6: Final answer
    x = 85,517.13

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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.