Home / 215,916.08-323,883.84-66,145.48

Finding the Fourth Proportional to 215,916.08, 323,883.84 and 66,145.48

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Solution

The fourth proportional to 215,916.08, 323,883.84 and 66,145.48 is: 99,221.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,916.08 : 323,883.84 = 66,145.48 : x
  2. Step 2: Convert to fraction form
    215,916.08/323,883.84 = 66,145.48/x
  3. Step 3: Cross multiply
    215,916.08x = 323,883.84 × 66,145.48
  4. Step 4: Simplify right side
    215,916.08x = 21,423,452,061.04
  5. Step 5: Solve for x
    x = 21,423,452,061.04/215,916.08
  6. Step 6: Final answer
    x = 99,221.20

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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.