Home / 121,148.66-167,185.16-67,432.53

Finding the Fourth Proportional to 121,148.66, 167,185.16 and 67,432.53

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Solution

The fourth proportional to 121,148.66, 167,185.16 and 67,432.53 is: 93,056.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,148.66 : 167,185.16 = 67,432.53 : x
  2. Step 2: Convert to fraction form
    121,148.66/167,185.16 = 67,432.53/x
  3. Step 3: Cross multiply
    121,148.66x = 167,185.16 × 67,432.53
  4. Step 4: Simplify right side
    121,148.66x = 11,273,718,485.84
  5. Step 5: Solve for x
    x = 11,273,718,485.84/121,148.66
  6. Step 6: Final answer
    x = 93,056.89

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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.