Home / 121,567.94-167,772.21-67,863.44

Finding the Fourth Proportional to 121,567.94, 167,772.21 and 67,863.44

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Solution

The fourth proportional to 121,567.94, 167,772.21 and 67,863.44 is: 93,656.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,567.94 : 167,772.21 = 67,863.44 : x
  2. Step 2: Convert to fraction form
    121,567.94/167,772.21 = 67,863.44/x
  3. Step 3: Cross multiply
    121,567.94x = 167,772.21 × 67,863.44
  4. Step 4: Simplify right side
    121,567.94x = 11,385,599,307.00
  5. Step 5: Solve for x
    x = 11,385,599,307.00/121,567.94
  6. Step 6: Final answer
    x = 93,656.27

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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.