Home / 123,766.24-185,666.64-61,420

Finding the Fourth Proportional to 123,766.24, 185,666.64 and 61,420

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Solution

The fourth proportional to 123,766.24, 185,666.64 and 61,420 is: 92,138.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,766.24 : 185,666.64 = 61,420 : x
  2. Step 2: Convert to fraction form
    123,766.24/185,666.64 = 61,420/x
  3. Step 3: Cross multiply
    123,766.24x = 185,666.64 × 61,420
  4. Step 4: Simplify right side
    123,766.24x = 11,403,645,028.80
  5. Step 5: Solve for x
    x = 11,403,645,028.80/123,766.24
  6. Step 6: Final answer
    x = 92,138.58

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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.