Home / 143,700.65-198,306.95-83,306.30

Finding the Fourth Proportional to 143,700.65, 198,306.95 and 83,306.30

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Solution

The fourth proportional to 143,700.65, 198,306.95 and 83,306.30 is: 114,962.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,700.65 : 198,306.95 = 83,306.30 : x
  2. Step 2: Convert to fraction form
    143,700.65/198,306.95 = 83,306.30/x
  3. Step 3: Cross multiply
    143,700.65x = 198,306.95 × 83,306.30
  4. Step 4: Simplify right side
    143,700.65x = 16,520,218,556.29
  5. Step 5: Solve for x
    x = 16,520,218,556.29/143,700.65
  6. Step 6: Final answer
    x = 114,962.73

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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.