Home / 161,948.42-223,489.21-90,333.08

Finding the Fourth Proportional to 161,948.42, 223,489.21 and 90,333.08

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Solution

The fourth proportional to 161,948.42, 223,489.21 and 90,333.08 is: 124,659.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,948.42 : 223,489.21 = 90,333.08 : x
  2. Step 2: Convert to fraction form
    161,948.42/223,489.21 = 90,333.08/x
  3. Step 3: Cross multiply
    161,948.42x = 223,489.21 × 90,333.08
  4. Step 4: Simplify right side
    161,948.42x = 20,188,468,686.07
  5. Step 5: Solve for x
    x = 20,188,468,686.07/161,948.42
  6. Step 6: Final answer
    x = 124,659.87

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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.