Home / 161,838.85-242,885.40-112,267.78

Finding the Fourth Proportional to 161,838.85, 242,885.40 and 112,267.78

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Solution

The fourth proportional to 161,838.85, 242,885.40 and 112,267.78 is: 168,489.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,838.85 : 242,885.40 = 112,267.78 : x
  2. Step 2: Convert to fraction form
    161,838.85/242,885.40 = 112,267.78/x
  3. Step 3: Cross multiply
    161,838.85x = 242,885.40 × 112,267.78
  4. Step 4: Simplify right side
    161,838.85x = 27,268,204,652.41
  5. Step 5: Solve for x
    x = 27,268,204,652.41/161,838.85
  6. Step 6: Final answer
    x = 168,489.86

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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.