Home / 144,017.52-198,755.40-80,364.88

Finding the Fourth Proportional to 144,017.52, 198,755.40 and 80,364.88

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Solution

The fourth proportional to 144,017.52, 198,755.40 and 80,364.88 is: 110,909.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,017.52 : 198,755.40 = 80,364.88 : x
  2. Step 2: Convert to fraction form
    144,017.52/198,755.40 = 80,364.88/x
  3. Step 3: Cross multiply
    144,017.52x = 198,755.40 × 80,364.88
  4. Step 4: Simplify right side
    144,017.52x = 15,972,953,870.35
  5. Step 5: Solve for x
    x = 15,972,953,870.35/144,017.52
  6. Step 6: Final answer
    x = 110,909.80

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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.