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Finding the Fourth Proportional to 144,309.59, 199,124.92 and 80,635.08

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Solution

The fourth proportional to 144,309.59, 199,124.92 and 80,635.08 is: 111,263.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,309.59 : 199,124.92 = 80,635.08 : x
  2. Step 2: Convert to fraction form
    144,309.59/199,124.92 = 80,635.08/x
  3. Step 3: Cross multiply
    144,309.59x = 199,124.92 × 80,635.08
  4. Step 4: Simplify right side
    144,309.59x = 16,056,453,854.19
  5. Step 5: Solve for x
    x = 16,056,453,854.19/144,309.59
  6. Step 6: Final answer
    x = 111,263.94

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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.