Home / 103,974.64-155,975.86-36,490.66

Finding the Fourth Proportional to 103,974.64, 155,975.86 and 36,490.66

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Solution

The fourth proportional to 103,974.64, 155,975.86 and 36,490.66 is: 54,740.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,974.64 : 155,975.86 = 36,490.66 : x
  2. Step 2: Convert to fraction form
    103,974.64/155,975.86 = 36,490.66/x
  3. Step 3: Cross multiply
    103,974.64x = 155,975.86 × 36,490.66
  4. Step 4: Simplify right side
    103,974.64x = 5,691,662,075.47
  5. Step 5: Solve for x
    x = 5,691,662,075.47/103,974.64
  6. Step 6: Final answer
    x = 54,740.87

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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.