Home / 109,672.20-164,508.30-99,502.65

Finding the Fourth Proportional to 109,672.20, 164,508.30 and 99,502.65

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Solution

The fourth proportional to 109,672.20, 164,508.30 and 99,502.65 is: 149,253.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,672.20 : 164,508.30 = 99,502.65 : x
  2. Step 2: Convert to fraction form
    109,672.20/164,508.30 = 99,502.65/x
  3. Step 3: Cross multiply
    109,672.20x = 164,508.30 × 99,502.65
  4. Step 4: Simplify right side
    109,672.20x = 16,369,011,797.00
  5. Step 5: Solve for x
    x = 16,369,011,797.00/109,672.20
  6. Step 6: Final answer
    x = 149,253.98

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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.