Home / 193,132.40-289,828.20-87,897.20

Finding the Fourth Proportional to 193,132.40, 289,828.20 and 87,897.20

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Solution

The fourth proportional to 193,132.40, 289,828.20 and 87,897.20 is: 131,904.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,132.40 : 289,828.20 = 87,897.20 : x
  2. Step 2: Convert to fraction form
    193,132.40/289,828.20 = 87,897.20/x
  3. Step 3: Cross multiply
    193,132.40x = 289,828.20 × 87,897.20
  4. Step 4: Simplify right side
    193,132.40x = 25,475,087,261.04
  5. Step 5: Solve for x
    x = 25,475,087,261.04/193,132.40
  6. Step 6: Final answer
    x = 131,904.78

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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.