Home / 115,758.20-173,694.90-45,639.80

Finding the Fourth Proportional to 115,758.20, 173,694.90 and 45,639.80

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Solution

The fourth proportional to 115,758.20, 173,694.90 and 45,639.80 is: 68,482.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,758.20 : 173,694.90 = 45,639.80 : x
  2. Step 2: Convert to fraction form
    115,758.20/173,694.90 = 45,639.80/x
  3. Step 3: Cross multiply
    115,758.20x = 173,694.90 × 45,639.80
  4. Step 4: Simplify right side
    115,758.20x = 7,927,400,497.02
  5. Step 5: Solve for x
    x = 7,927,400,497.02/115,758.20
  6. Step 6: Final answer
    x = 68,482.41

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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.