Home / 165,987.52-229,055.84-90,531.52

Finding the Fourth Proportional to 165,987.52, 229,055.84 and 90,531.52

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Solution

The fourth proportional to 165,987.52, 229,055.84 and 90,531.52 is: 124,929.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,987.52 : 229,055.84 = 90,531.52 : x
  2. Step 2: Convert to fraction form
    165,987.52/229,055.84 = 90,531.52/x
  3. Step 3: Cross multiply
    165,987.52x = 229,055.84 × 90,531.52
  4. Step 4: Simplify right side
    165,987.52x = 20,736,773,360.08
  5. Step 5: Solve for x
    x = 20,736,773,360.08/165,987.52
  6. Step 6: Final answer
    x = 124,929.71

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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.