Home / 102,463.05-141,399.81-57,143.91

Finding the Fourth Proportional to 102,463.05, 141,399.81 and 57,143.91

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Solution

The fourth proportional to 102,463.05, 141,399.81 and 57,143.91 is: 78,859.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,463.05 : 141,399.81 = 57,143.91 : x
  2. Step 2: Convert to fraction form
    102,463.05/141,399.81 = 57,143.91/x
  3. Step 3: Cross multiply
    102,463.05x = 141,399.81 × 57,143.91
  4. Step 4: Simplify right side
    102,463.05x = 8,080,138,016.66
  5. Step 5: Solve for x
    x = 8,080,138,016.66/102,463.05
  6. Step 6: Final answer
    x = 78,859.04

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1.5x scale

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.