Home / 103,814.20-155,663.70-44,639.80

Finding the Fourth Proportional to 103,814.20, 155,663.70 and 44,639.80

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Solution

The fourth proportional to 103,814.20, 155,663.70 and 44,639.80 is: 66,934.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,814.20 : 155,663.70 = 44,639.80 : x
  2. Step 2: Convert to fraction form
    103,814.20/155,663.70 = 44,639.80/x
  3. Step 3: Cross multiply
    103,814.20x = 155,663.70 × 44,639.80
  4. Step 4: Simplify right side
    103,814.20x = 6,948,796,435.26
  5. Step 5: Solve for x
    x = 6,948,796,435.26/103,814.20
  6. Step 6: Final answer
    x = 66,934.93

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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.