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Finding the Fourth Proportional to 162,064.68, 223,660.49 and 90,458.66

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Solution

The fourth proportional to 162,064.68, 223,660.49 and 90,458.66 is: 124,839.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,064.68 : 223,660.49 = 90,458.66 : x
  2. Step 2: Convert to fraction form
    162,064.68/223,660.49 = 90,458.66/x
  3. Step 3: Cross multiply
    162,064.68x = 223,660.49 × 90,458.66
  4. Step 4: Simplify right side
    162,064.68x = 20,232,026,649.75
  5. Step 5: Solve for x
    x = 20,232,026,649.75/162,064.68
  6. Step 6: Final answer
    x = 124,839.21

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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.