Home / 102,952.20-154,428.30-92,065.80

Finding the Fourth Proportional to 102,952.20, 154,428.30 and 92,065.80

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Solution

The fourth proportional to 102,952.20, 154,428.30 and 92,065.80 is: 138,098.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,952.20 : 154,428.30 = 92,065.80 : x
  2. Step 2: Convert to fraction form
    102,952.20/154,428.30 = 92,065.80/x
  3. Step 3: Cross multiply
    102,952.20x = 154,428.30 × 92,065.80
  4. Step 4: Simplify right side
    102,952.20x = 14,217,564,982.14
  5. Step 5: Solve for x
    x = 14,217,564,982.14/102,952.20
  6. Step 6: Final answer
    x = 138,098.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.