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Finding the Fourth Proportional to 121,287.84, 167,373 and 67,570.08

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Solution

The fourth proportional to 121,287.84, 167,373 and 67,570.08 is: 93,244.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,287.84 : 167,373 = 67,570.08 : x
  2. Step 2: Convert to fraction form
    121,287.84/167,373 = 67,570.08/x
  3. Step 3: Cross multiply
    121,287.84x = 167,373 × 67,570.08
  4. Step 4: Simplify right side
    121,287.84x = 11,309,406,999.84
  5. Step 5: Solve for x
    x = 11,309,406,999.84/121,287.84
  6. Step 6: Final answer
    x = 93,244.36

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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.