Home / 129,801.16-179,110.33-75,340.74

Finding the Fourth Proportional to 129,801.16, 179,110.33 and 75,340.74

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Solution

The fourth proportional to 129,801.16, 179,110.33 and 75,340.74 is: 103,961.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,801.16 : 179,110.33 = 75,340.74 : x
  2. Step 2: Convert to fraction form
    129,801.16/179,110.33 = 75,340.74/x
  3. Step 3: Cross multiply
    129,801.16x = 179,110.33 × 75,340.74
  4. Step 4: Simplify right side
    129,801.16x = 13,494,304,615.49
  5. Step 5: Solve for x
    x = 13,494,304,615.49/129,801.16
  6. Step 6: Final answer
    x = 103,961.36

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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.