Home / 121,175.54-167,113.38-75,857.65

Finding the Fourth Proportional to 121,175.54, 167,113.38 and 75,857.65

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Solution

The fourth proportional to 121,175.54, 167,113.38 and 75,857.65 is: 104,615.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,175.54 : 167,113.38 = 75,857.65 : x
  2. Step 2: Convert to fraction form
    121,175.54/167,113.38 = 75,857.65/x
  3. Step 3: Cross multiply
    121,175.54x = 167,113.38 × 75,857.65
  4. Step 4: Simplify right side
    121,175.54x = 12,676,828,290.36
  5. Step 5: Solve for x
    x = 12,676,828,290.36/121,175.54
  6. Step 6: Final answer
    x = 104,615.41

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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.