Home / 103,255.26-154,939.33-40,077.89

Finding the Fourth Proportional to 103,255.26, 154,939.33 and 40,077.89

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Solution

The fourth proportional to 103,255.26, 154,939.33 and 40,077.89 is: 60,138.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,255.26 : 154,939.33 = 40,077.89 : x
  2. Step 2: Convert to fraction form
    103,255.26/154,939.33 = 40,077.89/x
  3. Step 3: Cross multiply
    103,255.26x = 154,939.33 × 40,077.89
  4. Step 4: Simplify right side
    103,255.26x = 6,209,641,280.84
  5. Step 5: Solve for x
    x = 6,209,641,280.84/103,255.26
  6. Step 6: Final answer
    x = 60,138.74

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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.