Home / 119,888.49-165,445.79-66,173.16

Finding the Fourth Proportional to 119,888.49, 165,445.79 and 66,173.16

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Solution

The fourth proportional to 119,888.49, 165,445.79 and 66,173.16 is: 91,318.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,888.49 : 165,445.79 = 66,173.16 : x
  2. Step 2: Convert to fraction form
    119,888.49/165,445.79 = 66,173.16/x
  3. Step 3: Cross multiply
    119,888.49x = 165,445.79 × 66,173.16
  4. Step 4: Simplify right side
    119,888.49x = 10,948,070,402.13
  5. Step 5: Solve for x
    x = 10,948,070,402.13/119,888.49
  6. Step 6: Final answer
    x = 91,318.78

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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.