Home / 121,491.04-182,304.60-51,422.80

Finding the Fourth Proportional to 121,491.04, 182,304.60 and 51,422.80

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Solution

The fourth proportional to 121,491.04, 182,304.60 and 51,422.80 is: 77,163.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,491.04 : 182,304.60 = 51,422.80 : x
  2. Step 2: Convert to fraction form
    121,491.04/182,304.60 = 51,422.80/x
  3. Step 3: Cross multiply
    121,491.04x = 182,304.60 × 51,422.80
  4. Step 4: Simplify right side
    121,491.04x = 9,374,612,984.88
  5. Step 5: Solve for x
    x = 9,374,612,984.88/121,491.04
  6. Step 6: Final answer
    x = 77,163.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.