Home / 120,195.06-165,864.15-65,746.35

Finding the Fourth Proportional to 120,195.06, 165,864.15 and 65,746.35

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Solution

The fourth proportional to 120,195.06, 165,864.15 and 65,746.35 is: 90,727.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,195.06 : 165,864.15 = 65,746.35 : x
  2. Step 2: Convert to fraction form
    120,195.06/165,864.15 = 65,746.35/x
  3. Step 3: Cross multiply
    120,195.06x = 165,864.15 × 65,746.35
  4. Step 4: Simplify right side
    120,195.06x = 10,904,962,458.35
  5. Step 5: Solve for x
    x = 10,904,962,458.35/120,195.06
  6. Step 6: Final answer
    x = 90,727.21

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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.