Home / 121,219.74-167,282.82-67,505.40

Finding the Fourth Proportional to 121,219.74, 167,282.82 and 67,505.40

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Solution

The fourth proportional to 121,219.74, 167,282.82 and 67,505.40 is: 93,157.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,219.74 : 167,282.82 = 67,505.40 : x
  2. Step 2: Convert to fraction form
    121,219.74/167,282.82 = 67,505.40/x
  3. Step 3: Cross multiply
    121,219.74x = 167,282.82 × 67,505.40
  4. Step 4: Simplify right side
    121,219.74x = 11,292,493,677.23
  5. Step 5: Solve for x
    x = 11,292,493,677.23/121,219.74
  6. Step 6: Final answer
    x = 93,157.22

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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.