Home / 103,306.46-154,814.04-82,152.70

Finding the Fourth Proportional to 103,306.46, 154,814.04 and 82,152.70

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Solution

The fourth proportional to 103,306.46, 154,814.04 and 82,152.70 is: 123,113.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,306.46 : 154,814.04 = 82,152.70 : x
  2. Step 2: Convert to fraction form
    103,306.46/154,814.04 = 82,152.70/x
  3. Step 3: Cross multiply
    103,306.46x = 154,814.04 × 82,152.70
  4. Step 4: Simplify right side
    103,306.46x = 12,718,391,383.91
  5. Step 5: Solve for x
    x = 12,718,391,383.91/103,306.46
  6. Step 6: Final answer
    x = 123,113.22

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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.