Home / 102,103.04-140,902.16-57,391.04

Finding the Fourth Proportional to 102,103.04, 140,902.16 and 57,391.04

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Solution

The fourth proportional to 102,103.04, 140,902.16 and 57,391.04 is: 79,199.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,103.04 : 140,902.16 = 57,391.04 : x
  2. Step 2: Convert to fraction form
    102,103.04/140,902.16 = 57,391.04/x
  3. Step 3: Cross multiply
    102,103.04x = 140,902.16 × 57,391.04
  4. Step 4: Simplify right side
    102,103.04x = 8,086,521,500.65
  5. Step 5: Solve for x
    x = 8,086,521,500.65/102,103.04
  6. Step 6: Final answer
    x = 79,199.62

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1.5x scale

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.