Home / 105,209.20-157,719.84-38,633.86

Finding the Fourth Proportional to 105,209.20, 157,719.84 and 38,633.86

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Solution

The fourth proportional to 105,209.20, 157,719.84 and 38,633.86 is: 57,916.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,209.20 : 157,719.84 = 38,633.86 : x
  2. Step 2: Convert to fraction form
    105,209.20/157,719.84 = 38,633.86/x
  3. Step 3: Cross multiply
    105,209.20x = 157,719.84 × 38,633.86
  4. Step 4: Simplify right side
    105,209.20x = 6,093,326,217.78
  5. Step 5: Solve for x
    x = 6,093,326,217.78/105,209.20
  6. Step 6: Final answer
    x = 57,916.29

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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.