Home / 123,927.15-171,020.55-67,338.53

Finding the Fourth Proportional to 123,927.15, 171,020.55 and 67,338.53

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Solution

The fourth proportional to 123,927.15, 171,020.55 and 67,338.53 is: 92,927.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,927.15 : 171,020.55 = 67,338.53 : x
  2. Step 2: Convert to fraction form
    123,927.15/171,020.55 = 67,338.53/x
  3. Step 3: Cross multiply
    123,927.15x = 171,020.55 × 67,338.53
  4. Step 4: Simplify right side
    123,927.15x = 11,516,272,140.34
  5. Step 5: Solve for x
    x = 11,516,272,140.34/123,927.15
  6. Step 6: Final answer
    x = 92,927.76

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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.