Home / 143,722.16-198,292.67-83,281.13

Finding the Fourth Proportional to 143,722.16, 198,292.67 and 83,281.13

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Solution

The fourth proportional to 143,722.16, 198,292.67 and 83,281.13 is: 114,902.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,722.16 : 198,292.67 = 83,281.13 : x
  2. Step 2: Convert to fraction form
    143,722.16/198,292.67 = 83,281.13/x
  3. Step 3: Cross multiply
    143,722.16x = 198,292.67 × 83,281.13
  4. Step 4: Simplify right side
    143,722.16x = 16,514,036,636.85
  5. Step 5: Solve for x
    x = 16,514,036,636.85/143,722.16
  6. Step 6: Final answer
    x = 114,902.51

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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.