Home / 103,800.12-155,693.70-41,425.80

Finding the Fourth Proportional to 103,800.12, 155,693.70 and 41,425.80

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Solution

The fourth proportional to 103,800.12, 155,693.70 and 41,425.80 is: 62,136.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,800.12 : 155,693.70 = 41,425.80 : x
  2. Step 2: Convert to fraction form
    103,800.12/155,693.70 = 41,425.80/x
  3. Step 3: Cross multiply
    103,800.12x = 155,693.70 × 41,425.80
  4. Step 4: Simplify right side
    103,800.12x = 6,449,736,077.46
  5. Step 5: Solve for x
    x = 6,449,736,077.46/103,800.12
  6. Step 6: Final answer
    x = 62,136.11

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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.