Home / 121,178.44-167,117.38-75,860.55

Finding the Fourth Proportional to 121,178.44, 167,117.38 and 75,860.55

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Solution

The fourth proportional to 121,178.44, 167,117.38 and 75,860.55 is: 104,619.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,178.44 : 167,117.38 = 75,860.55 : x
  2. Step 2: Convert to fraction form
    121,178.44/167,117.38 = 75,860.55/x
  3. Step 3: Cross multiply
    121,178.44x = 167,117.38 × 75,860.55
  4. Step 4: Simplify right side
    121,178.44x = 12,677,616,361.36
  5. Step 5: Solve for x
    x = 12,677,616,361.36/121,178.44
  6. Step 6: Final answer
    x = 104,619.41

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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.