Home / 102,423.12-141,344.56-57,104

Finding the Fourth Proportional to 102,423.12, 141,344.56 and 57,104

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Solution

The fourth proportional to 102,423.12, 141,344.56 and 57,104 is: 78,803.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,423.12 : 141,344.56 = 57,104 : x
  2. Step 2: Convert to fraction form
    102,423.12/141,344.56 = 57,104/x
  3. Step 3: Cross multiply
    102,423.12x = 141,344.56 × 57,104
  4. Step 4: Simplify right side
    102,423.12x = 8,071,339,754.24
  5. Step 5: Solve for x
    x = 8,071,339,754.24/102,423.12
  6. Step 6: Final answer
    x = 78,803.88

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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.