Home / 123,334.20-185,087.70-79,068.60

Finding the Fourth Proportional to 123,334.20, 185,087.70 and 79,068.60

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Solution

The fourth proportional to 123,334.20, 185,087.70 and 79,068.60 is: 118,658.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,334.20 : 185,087.70 = 79,068.60 : x
  2. Step 2: Convert to fraction form
    123,334.20/185,087.70 = 79,068.60/x
  3. Step 3: Cross multiply
    123,334.20x = 185,087.70 × 79,068.60
  4. Step 4: Simplify right side
    123,334.20x = 14,634,625,316.22
  5. Step 5: Solve for x
    x = 14,634,625,316.22/123,334.20
  6. Step 6: Final answer
    x = 118,658.29

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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.