Home / 151,631.22-209,184.48-91,166.88

Finding the Fourth Proportional to 151,631.22, 209,184.48 and 91,166.88

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Solution

The fourth proportional to 151,631.22, 209,184.48 and 91,166.88 is: 125,770.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,631.22 : 209,184.48 = 91,166.88 : x
  2. Step 2: Convert to fraction form
    151,631.22/209,184.48 = 91,166.88/x
  3. Step 3: Cross multiply
    151,631.22x = 209,184.48 × 91,166.88
  4. Step 4: Simplify right side
    151,631.22x = 19,070,696,386.02
  5. Step 5: Solve for x
    x = 19,070,696,386.02/151,631.22
  6. Step 6: Final answer
    x = 125,770.25

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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.