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Finding the Fourth Proportional to 161,955.88, 223,498.52 and 90,335.84

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Solution

The fourth proportional to 161,955.88, 223,498.52 and 90,335.84 is: 124,663.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,955.88 : 223,498.52 = 90,335.84 : x
  2. Step 2: Convert to fraction form
    161,955.88/223,498.52 = 90,335.84/x
  3. Step 3: Cross multiply
    161,955.88x = 223,498.52 × 90,335.84
  4. Step 4: Simplify right side
    161,955.88x = 20,189,926,542.96
  5. Step 5: Solve for x
    x = 20,189,926,542.96/161,955.88
  6. Step 6: Final answer
    x = 124,663.13

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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.