Home / 102,463.04-141,399.80-57,143.94

Finding the Fourth Proportional to 102,463.04, 141,399.80 and 57,143.94

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Solution

The fourth proportional to 102,463.04, 141,399.80 and 57,143.94 is: 78,859.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,463.04 : 141,399.80 = 57,143.94 : x
  2. Step 2: Convert to fraction form
    102,463.04/141,399.80 = 57,143.94/x
  3. Step 3: Cross multiply
    102,463.04x = 141,399.80 × 57,143.94
  4. Step 4: Simplify right side
    102,463.04x = 8,080,141,401.49
  5. Step 5: Solve for x
    x = 8,080,141,401.49/102,463.04
  6. Step 6: Final answer
    x = 78,859.09

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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.