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Finding the Fourth Proportional to 121,685.02, 167,914.38 and 67,962.58

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Solution

The fourth proportional to 121,685.02, 167,914.38 and 67,962.58 is: 93,782.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,685.02 : 167,914.38 = 67,962.58 : x
  2. Step 2: Convert to fraction form
    121,685.02/167,914.38 = 67,962.58/x
  3. Step 3: Cross multiply
    121,685.02x = 167,914.38 × 67,962.58
  4. Step 4: Simplify right side
    121,685.02x = 11,411,894,483.90
  5. Step 5: Solve for x
    x = 11,411,894,483.90/121,685.02
  6. Step 6: Final answer
    x = 93,782.25

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.