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Finding the Fourth Proportional to 143,952.19, 198,645.01 and 79,422.19

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Solution

The fourth proportional to 143,952.19, 198,645.01 and 79,422.19 is: 109,597.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,952.19 : 198,645.01 = 79,422.19 : x
  2. Step 2: Convert to fraction form
    143,952.19/198,645.01 = 79,422.19/x
  3. Step 3: Cross multiply
    143,952.19x = 198,645.01 × 79,422.19
  4. Step 4: Simplify right side
    143,952.19x = 15,776,821,031.60
  5. Step 5: Solve for x
    x = 15,776,821,031.60/143,952.19
  6. Step 6: Final answer
    x = 109,597.65

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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.