Home / 209,143.16-288,617.00-113,649.87

Finding the Fourth Proportional to 209,143.16, 288,617.00 and 113,649.87

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Solution

The fourth proportional to 209,143.16, 288,617.00 and 113,649.87 is: 156,836.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,143.16 : 288,617.00 = 113,649.87 : x
  2. Step 2: Convert to fraction form
    209,143.16/288,617.00 = 113,649.87/x
  3. Step 3: Cross multiply
    209,143.16x = 288,617.00 × 113,649.87
  4. Step 4: Simplify right side
    209,143.16x = 32,801,283,961.54
  5. Step 5: Solve for x
    x = 32,801,283,961.54/209,143.16
  6. Step 6: Final answer
    x = 156,836.52

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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.