Home / 103,400.35-155,003.56-40,260.98

Finding the Fourth Proportional to 103,400.35, 155,003.56 and 40,260.98

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Solution

The fourth proportional to 103,400.35, 155,003.56 and 40,260.98 is: 60,353.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,400.35 : 155,003.56 = 40,260.98 : x
  2. Step 2: Convert to fraction form
    103,400.35/155,003.56 = 40,260.98/x
  3. Step 3: Cross multiply
    103,400.35x = 155,003.56 × 40,260.98
  4. Step 4: Simplify right side
    103,400.35x = 6,240,595,515.95
  5. Step 5: Solve for x
    x = 6,240,595,515.95/103,400.35
  6. Step 6: Final answer
    x = 60,353.72

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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.