Home / 144,132.21-198,909.14-79,610.45

Finding the Fourth Proportional to 144,132.21, 198,909.14 and 79,610.45

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Solution

The fourth proportional to 144,132.21, 198,909.14 and 79,610.45 is: 109,866.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,132.21 : 198,909.14 = 79,610.45 : x
  2. Step 2: Convert to fraction form
    144,132.21/198,909.14 = 79,610.45/x
  3. Step 3: Cross multiply
    144,132.21x = 198,909.14 × 79,610.45
  4. Step 4: Simplify right side
    144,132.21x = 15,835,244,751.92
  5. Step 5: Solve for x
    x = 15,835,244,751.92/144,132.21
  6. Step 6: Final answer
    x = 109,866.11

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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.