Home / 215,129.50-322,694.08-65,369.18

Finding the Fourth Proportional to 215,129.50, 322,694.08 and 65,369.18

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Solution

The fourth proportional to 215,129.50, 322,694.08 and 65,369.18 is: 98,053.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,129.50 : 322,694.08 = 65,369.18 : x
  2. Step 2: Convert to fraction form
    215,129.50/322,694.08 = 65,369.18/x
  3. Step 3: Cross multiply
    215,129.50x = 322,694.08 × 65,369.18
  4. Step 4: Simplify right side
    215,129.50x = 21,094,247,400.45
  5. Step 5: Solve for x
    x = 21,094,247,400.45/215,129.50
  6. Step 6: Final answer
    x = 98,053.72

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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.