Home / 123,927.20-171,019.18-67,338.56

Finding the Fourth Proportional to 123,927.20, 171,019.18 and 67,338.56

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Solution

The fourth proportional to 123,927.20, 171,019.18 and 67,338.56 is: 92,927.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,927.20 : 171,019.18 = 67,338.56 : x
  2. Step 2: Convert to fraction form
    123,927.20/171,019.18 = 67,338.56/x
  3. Step 3: Cross multiply
    123,927.20x = 171,019.18 × 67,338.56
  4. Step 4: Simplify right side
    123,927.20x = 11,516,184,290.14
  5. Step 5: Solve for x
    x = 11,516,184,290.14/123,927.20
  6. Step 6: Final answer
    x = 92,927.01

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1.5x scale

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.