Home / 126,077.62-173,987.93-69,489

Finding the Fourth Proportional to 126,077.62, 173,987.93 and 69,489

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Solution

The fourth proportional to 126,077.62, 173,987.93 and 69,489 is: 95,895.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,077.62 : 173,987.93 = 69,489 : x
  2. Step 2: Convert to fraction form
    126,077.62/173,987.93 = 69,489/x
  3. Step 3: Cross multiply
    126,077.62x = 173,987.93 × 69,489
  4. Step 4: Simplify right side
    126,077.62x = 12,090,247,267.77
  5. Step 5: Solve for x
    x = 12,090,247,267.77/126,077.62
  6. Step 6: Final answer
    x = 95,895.27

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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.