Home / 143,711.06-198,306.12-83,300.66

Finding the Fourth Proportional to 143,711.06, 198,306.12 and 83,300.66

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Solution

The fourth proportional to 143,711.06, 198,306.12 and 83,300.66 is: 114,946.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,711.06 : 198,306.12 = 83,300.66 : x
  2. Step 2: Convert to fraction form
    143,711.06/198,306.12 = 83,300.66/x
  3. Step 3: Cross multiply
    143,711.06x = 198,306.12 × 83,300.66
  4. Step 4: Simplify right side
    143,711.06x = 16,519,030,678.04
  5. Step 5: Solve for x
    x = 16,519,030,678.04/143,711.06
  6. Step 6: Final answer
    x = 114,946.13

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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.