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Finding the Fourth Proportional to 144,421.92, 199,296.72 and 80,758.08

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Solution

The fourth proportional to 144,421.92, 199,296.72 and 80,758.08 is: 111,443.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,421.92 : 199,296.72 = 80,758.08 : x
  2. Step 2: Convert to fraction form
    144,421.92/199,296.72 = 80,758.08/x
  3. Step 3: Cross multiply
    144,421.92x = 199,296.72 × 80,758.08
  4. Step 4: Simplify right side
    144,421.92x = 16,094,820,457.50
  5. Step 5: Solve for x
    x = 16,094,820,457.50/144,421.92
  6. Step 6: Final answer
    x = 111,443.06

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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.