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Finding the Fourth Proportional to 144,464.80, 199,416.72 and 87,872.80

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Solution

The fourth proportional to 144,464.80, 199,416.72 and 87,872.80 is: 121,298.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,464.80 : 199,416.72 = 87,872.80 : x
  2. Step 2: Convert to fraction form
    144,464.80/199,416.72 = 87,872.80/x
  3. Step 3: Cross multiply
    144,464.80x = 199,416.72 × 87,872.80
  4. Step 4: Simplify right side
    144,464.80x = 17,523,305,553.22
  5. Step 5: Solve for x
    x = 17,523,305,553.22/144,464.80
  6. Step 6: Final answer
    x = 121,298.10

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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.