Home / 120,084.20-165,717.42-65,637.92

Finding the Fourth Proportional to 120,084.20, 165,717.42 and 65,637.92

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Solution

The fourth proportional to 120,084.20, 165,717.42 and 65,637.92 is: 90,581.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,084.20 : 165,717.42 = 65,637.92 : x
  2. Step 2: Convert to fraction form
    120,084.20/165,717.42 = 65,637.92/x
  3. Step 3: Cross multiply
    120,084.20x = 165,717.42 × 65,637.92
  4. Step 4: Simplify right side
    120,084.20x = 10,877,347,417.00
  5. Step 5: Solve for x
    x = 10,877,347,417.00/120,084.20
  6. Step 6: Final answer
    x = 90,581.01

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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.