Home / 151,585.62-209,193.03-83,605.50

Finding the Fourth Proportional to 151,585.62, 209,193.03 and 83,605.50

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Solution

The fourth proportional to 151,585.62, 209,193.03 and 83,605.50 is: 115,378.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,585.62 : 209,193.03 = 83,605.50 : x
  2. Step 2: Convert to fraction form
    151,585.62/209,193.03 = 83,605.50/x
  3. Step 3: Cross multiply
    151,585.62x = 209,193.03 × 83,605.50
  4. Step 4: Simplify right side
    151,585.62x = 17,489,687,869.67
  5. Step 5: Solve for x
    x = 17,489,687,869.67/151,585.62
  6. Step 6: Final answer
    x = 115,378.28

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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.