Home / 209,266.17-288,785.89-113,772.87

Finding the Fourth Proportional to 209,266.17, 288,785.89 and 113,772.87

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Solution

The fourth proportional to 209,266.17, 288,785.89 and 113,772.87 is: 157,005.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,266.17 : 288,785.89 = 113,772.87 : x
  2. Step 2: Convert to fraction form
    209,266.17/288,785.89 = 113,772.87/x
  3. Step 3: Cross multiply
    209,266.17x = 288,785.89 × 113,772.87
  4. Step 4: Simplify right side
    209,266.17x = 32,855,999,520.80
  5. Step 5: Solve for x
    x = 32,855,999,520.80/209,266.17
  6. Step 6: Final answer
    x = 157,005.79

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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.