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Finding the Fourth Proportional to 144,689.47, 199,672.86 and 80,160.07

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Solution

The fourth proportional to 144,689.47, 199,672.86 and 80,160.07 is: 110,621.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,689.47 : 199,672.86 = 80,160.07 : x
  2. Step 2: Convert to fraction form
    144,689.47/199,672.86 = 80,160.07/x
  3. Step 3: Cross multiply
    144,689.47x = 199,672.86 × 80,160.07
  4. Step 4: Simplify right side
    144,689.47x = 16,005,790,434.70
  5. Step 5: Solve for x
    x = 16,005,790,434.70/144,689.47
  6. Step 6: Final answer
    x = 110,621.67

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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.