Home / 151,568.30-209,165.28-83,587.70

Finding the Fourth Proportional to 151,568.30, 209,165.28 and 83,587.70

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Solution

The fourth proportional to 151,568.30, 209,165.28 and 83,587.70 is: 115,351.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,568.30 : 209,165.28 = 83,587.70 : x
  2. Step 2: Convert to fraction form
    151,568.30/209,165.28 = 83,587.70/x
  3. Step 3: Cross multiply
    151,568.30x = 209,165.28 × 83,587.70
  4. Step 4: Simplify right side
    151,568.30x = 17,483,644,675.06
  5. Step 5: Solve for x
    x = 17,483,644,675.06/151,568.30
  6. Step 6: Final answer
    x = 115,351.59

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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.