Home / 143,952.48-198,654.69-80,294.40

Finding the Fourth Proportional to 143,952.48, 198,654.69 and 80,294.40

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Solution

The fourth proportional to 143,952.48, 198,654.69 and 80,294.40 is: 110,806.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,952.48 : 198,654.69 = 80,294.40 : x
  2. Step 2: Convert to fraction form
    143,952.48/198,654.69 = 80,294.40/x
  3. Step 3: Cross multiply
    143,952.48x = 198,654.69 × 80,294.40
  4. Step 4: Simplify right side
    143,952.48x = 15,950,859,140.74
  5. Step 5: Solve for x
    x = 15,950,859,140.74/143,952.48
  6. Step 6: Final answer
    x = 110,806.42

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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.