Home / 115,204.06-158,907.42-76,441.04

Finding the Fourth Proportional to 115,204.06, 158,907.42 and 76,441.04

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Solution

The fourth proportional to 115,204.06, 158,907.42 and 76,441.04 is: 105,439.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,204.06 : 158,907.42 = 76,441.04 : x
  2. Step 2: Convert to fraction form
    115,204.06/158,907.42 = 76,441.04/x
  3. Step 3: Cross multiply
    115,204.06x = 158,907.42 × 76,441.04
  4. Step 4: Simplify right side
    115,204.06x = 12,147,048,448.52
  5. Step 5: Solve for x
    x = 12,147,048,448.52/115,204.06
  6. Step 6: Final answer
    x = 105,439.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.