Home / 193,320.87-289,864.82-86,685.53

Finding the Fourth Proportional to 193,320.87, 289,864.82 and 86,685.53

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Solution

The fourth proportional to 193,320.87, 289,864.82 and 86,685.53 is: 129,976.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,320.87 : 289,864.82 = 86,685.53 : x
  2. Step 2: Convert to fraction form
    193,320.87/289,864.82 = 86,685.53/x
  3. Step 3: Cross multiply
    193,320.87x = 289,864.82 × 86,685.53
  4. Step 4: Simplify right side
    193,320.87x = 25,127,084,860.94
  5. Step 5: Solve for x
    x = 25,127,084,860.94/193,320.87
  6. Step 6: Final answer
    x = 129,976.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.