Home / 215,158.81-322,885.20-74,917.42

Finding the Fourth Proportional to 215,158.81, 322,885.20 and 74,917.42

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Solution

The fourth proportional to 215,158.81, 322,885.20 and 74,917.42 is: 112,427.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,158.81 : 322,885.20 = 74,917.42 : x
  2. Step 2: Convert to fraction form
    215,158.81/322,885.20 = 74,917.42/x
  3. Step 3: Cross multiply
    215,158.81x = 322,885.20 × 74,917.42
  4. Step 4: Simplify right side
    215,158.81x = 24,189,726,140.18
  5. Step 5: Solve for x
    x = 24,189,726,140.18/215,158.81
  6. Step 6: Final answer
    x = 112,427.31

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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.