Home / 121,968.62-168,314.02-66,777.83

Finding the Fourth Proportional to 121,968.62, 168,314.02 and 66,777.83

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Solution

The fourth proportional to 121,968.62, 168,314.02 and 66,777.83 is: 92,151.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,968.62 : 168,314.02 = 66,777.83 : x
  2. Step 2: Convert to fraction form
    121,968.62/168,314.02 = 66,777.83/x
  3. Step 3: Cross multiply
    121,968.62x = 168,314.02 × 66,777.83
  4. Step 4: Simplify right side
    121,968.62x = 11,239,645,012.46
  5. Step 5: Solve for x
    x = 11,239,645,012.46/121,968.62
  6. Step 6: Final answer
    x = 92,151.94

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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.