Home / 102,687.06-141,694.16-57,359.28

Finding the Fourth Proportional to 102,687.06, 141,694.16 and 57,359.28

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Solution

The fourth proportional to 102,687.06, 141,694.16 and 57,359.28 is: 79,148.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,687.06 : 141,694.16 = 57,359.28 : x
  2. Step 2: Convert to fraction form
    102,687.06/141,694.16 = 57,359.28/x
  3. Step 3: Cross multiply
    102,687.06x = 141,694.16 × 57,359.28
  4. Step 4: Simplify right side
    102,687.06x = 8,127,474,997.80
  5. Step 5: Solve for x
    x = 8,127,474,997.80/102,687.06
  6. Step 6: Final answer
    x = 79,148.00

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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.