Home / 123,764.24-185,663.64-61,418

Finding the Fourth Proportional to 123,764.24, 185,663.64 and 61,418

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Solution

The fourth proportional to 123,764.24, 185,663.64 and 61,418 is: 92,135.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,764.24 : 185,663.64 = 61,418 : x
  2. Step 2: Convert to fraction form
    123,764.24/185,663.64 = 61,418/x
  3. Step 3: Cross multiply
    123,764.24x = 185,663.64 × 61,418
  4. Step 4: Simplify right side
    123,764.24x = 11,403,089,441.52
  5. Step 5: Solve for x
    x = 11,403,089,441.52/123,764.24
  6. Step 6: Final answer
    x = 92,135.58

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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.