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Finding the Fourth Proportional to 144,384.60, 199,251.60 and 80,723.40

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Solution

The fourth proportional to 144,384.60, 199,251.60 and 80,723.40 is: 111,398.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,384.60 : 199,251.60 = 80,723.40 : x
  2. Step 2: Convert to fraction form
    144,384.60/199,251.60 = 80,723.40/x
  3. Step 3: Cross multiply
    144,384.60x = 199,251.60 × 80,723.40
  4. Step 4: Simplify right side
    144,384.60x = 16,084,266,607.44
  5. Step 5: Solve for x
    x = 16,084,266,607.44/144,384.60
  6. Step 6: Final answer
    x = 111,398.77

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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.