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Finding the Fourth Proportional to 144,385.60, 199,252.98 and 80,724.40

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Solution

The fourth proportional to 144,385.60, 199,252.98 and 80,724.40 is: 111,400.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,385.60 : 199,252.98 = 80,724.40 : x
  2. Step 2: Convert to fraction form
    144,385.60/199,252.98 = 80,724.40/x
  3. Step 3: Cross multiply
    144,385.60x = 199,252.98 × 80,724.40
  4. Step 4: Simplify right side
    144,385.60x = 16,084,577,258.71
  5. Step 5: Solve for x
    x = 16,084,577,258.71/144,385.60
  6. Step 6: Final answer
    x = 111,400.15

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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.