Home / 102,767.94-141,815.61-57,445.20

Finding the Fourth Proportional to 102,767.94, 141,815.61 and 57,445.20

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Solution

The fourth proportional to 102,767.94, 141,815.61 and 57,445.20 is: 79,272.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,767.94 : 141,815.61 = 57,445.20 : x
  2. Step 2: Convert to fraction form
    102,767.94/141,815.61 = 57,445.20/x
  3. Step 3: Cross multiply
    102,767.94x = 141,815.61 × 57,445.20
  4. Step 4: Simplify right side
    102,767.94x = 8,146,626,079.57
  5. Step 5: Solve for x
    x = 8,146,626,079.57/102,767.94
  6. Step 6: Final answer
    x = 79,272.06

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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.