Home / 103,677.08-154,445.61-100,540.86

Finding the Fourth Proportional to 103,677.08, 154,445.61 and 100,540.86

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Solution

The fourth proportional to 103,677.08, 154,445.61 and 100,540.86 is: 149,773.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,677.08 : 154,445.61 = 100,540.86 : x
  2. Step 2: Convert to fraction form
    103,677.08/154,445.61 = 100,540.86/x
  3. Step 3: Cross multiply
    103,677.08x = 154,445.61 × 100,540.86
  4. Step 4: Simplify right side
    103,677.08x = 15,528,094,452.62
  5. Step 5: Solve for x
    x = 15,528,094,452.62/103,677.08
  6. Step 6: Final answer
    x = 149,773.65

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.