Home / 162,789.78-224,644.65-90,189.69

Finding the Fourth Proportional to 162,789.78, 224,644.65 and 90,189.69

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Solution

The fourth proportional to 162,789.78, 224,644.65 and 90,189.69 is: 124,458.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,789.78 : 224,644.65 = 90,189.69 : x
  2. Step 2: Convert to fraction form
    162,789.78/224,644.65 = 90,189.69/x
  3. Step 3: Cross multiply
    162,789.78x = 224,644.65 × 90,189.69
  4. Step 4: Simplify right side
    162,789.78x = 20,260,631,343.66
  5. Step 5: Solve for x
    x = 20,260,631,343.66/162,789.78
  6. Step 6: Final answer
    x = 124,458.87

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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.