Home / 124,772.12-187,078.39-74,157.65

Finding the Fourth Proportional to 124,772.12, 187,078.39 and 74,157.65

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Solution

The fourth proportional to 124,772.12, 187,078.39 and 74,157.65 is: 111,189.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,772.12 : 187,078.39 = 74,157.65 : x
  2. Step 2: Convert to fraction form
    124,772.12/187,078.39 = 74,157.65/x
  3. Step 3: Cross multiply
    124,772.12x = 187,078.39 × 74,157.65
  4. Step 4: Simplify right side
    124,772.12x = 13,873,293,011.95
  5. Step 5: Solve for x
    x = 13,873,293,011.95/124,772.12
  6. Step 6: Final answer
    x = 111,189.04

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1.5x scale

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.