Home / 133,049.25-183,607.97-90,681.80

Finding the Fourth Proportional to 133,049.25, 183,607.97 and 90,681.80

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Solution

The fourth proportional to 133,049.25, 183,607.97 and 90,681.80 is: 125,140.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,049.25 : 183,607.97 = 90,681.80 : x
  2. Step 2: Convert to fraction form
    133,049.25/183,607.97 = 90,681.80/x
  3. Step 3: Cross multiply
    133,049.25x = 183,607.97 × 90,681.80
  4. Step 4: Simplify right side
    133,049.25x = 16,649,899,842.50
  5. Step 5: Solve for x
    x = 16,649,899,842.50/133,049.25
  6. Step 6: Final answer
    x = 125,140.88

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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.