Home / 215,925.66-323,934.90-66,176.28

Finding the Fourth Proportional to 215,925.66, 323,934.90 and 66,176.28

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Solution

The fourth proportional to 215,925.66, 323,934.90 and 66,176.28 is: 99,278.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,925.66 : 323,934.90 = 66,176.28 : x
  2. Step 2: Convert to fraction form
    215,925.66/323,934.90 = 66,176.28/x
  3. Step 3: Cross multiply
    215,925.66x = 323,934.90 × 66,176.28
  4. Step 4: Simplify right side
    215,925.66x = 21,436,806,644.17
  5. Step 5: Solve for x
    x = 21,436,806,644.17/215,925.66
  6. Step 6: Final answer
    x = 99,278.64

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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.