Home / 144,047.40-198,785.58-80,385.18

Finding the Fourth Proportional to 144,047.40, 198,785.58 and 80,385.18

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Solution

The fourth proportional to 144,047.40, 198,785.58 and 80,385.18 is: 110,931.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,047.40 : 198,785.58 = 80,385.18 : x
  2. Step 2: Convert to fraction form
    144,047.40/198,785.58 = 80,385.18/x
  3. Step 3: Cross multiply
    144,047.40x = 198,785.58 × 80,385.18
  4. Step 4: Simplify right side
    144,047.40x = 15,979,414,629.70
  5. Step 5: Solve for x
    x = 15,979,414,629.70/144,047.40
  6. Step 6: Final answer
    x = 110,931.64

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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.