Home / 207,869.90-286,858.68-112,375.76

Finding the Fourth Proportional to 207,869.90, 286,858.68 and 112,375.76

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Solution

The fourth proportional to 207,869.90, 286,858.68 and 112,375.76 is: 155,077.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,869.90 : 286,858.68 = 112,375.76 : x
  2. Step 2: Convert to fraction form
    207,869.90/286,858.68 = 112,375.76/x
  3. Step 3: Cross multiply
    207,869.90x = 286,858.68 × 112,375.76
  4. Step 4: Simplify right side
    207,869.90x = 32,235,962,177.60
  5. Step 5: Solve for x
    x = 32,235,962,177.60/207,869.90
  6. Step 6: Final answer
    x = 155,077.59

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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.