Home / 103,639.20-155,458.80-37,084.55

Finding the Fourth Proportional to 103,639.20, 155,458.80 and 37,084.55

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Solution

The fourth proportional to 103,639.20, 155,458.80 and 37,084.55 is: 55,626.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,639.20 : 155,458.80 = 37,084.55 : x
  2. Step 2: Convert to fraction form
    103,639.20/155,458.80 = 37,084.55/x
  3. Step 3: Cross multiply
    103,639.20x = 155,458.80 × 37,084.55
  4. Step 4: Simplify right side
    103,639.20x = 5,765,118,864.25
  5. Step 5: Solve for x
    x = 5,765,118,864.25/103,639.20
  6. Step 6: Final answer
    x = 55,626.82

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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.