Home / 103,690.70-155,536.05-41,405.90

Finding the Fourth Proportional to 103,690.70, 155,536.05 and 41,405.90

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Solution

The fourth proportional to 103,690.70, 155,536.05 and 41,405.90 is: 62,108.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,690.70 : 155,536.05 = 41,405.90 : x
  2. Step 2: Convert to fraction form
    103,690.70/155,536.05 = 41,405.90/x
  3. Step 3: Cross multiply
    103,690.70x = 155,536.05 × 41,405.90
  4. Step 4: Simplify right side
    103,690.70x = 6,440,110,132.70
  5. Step 5: Solve for x
    x = 6,440,110,132.70/103,690.70
  6. Step 6: Final answer
    x = 62,108.85

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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.