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Finding the Fourth Proportional to 123,975.84, 171,087.84 and 73,665.12

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Solution

The fourth proportional to 123,975.84, 171,087.84 and 73,665.12 is: 101,658.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,975.84 : 171,087.84 = 73,665.12 : x
  2. Step 2: Convert to fraction form
    123,975.84/171,087.84 = 73,665.12/x
  3. Step 3: Cross multiply
    123,975.84x = 171,087.84 × 73,665.12
  4. Step 4: Simplify right side
    123,975.84x = 12,603,206,264.14
  5. Step 5: Solve for x
    x = 12,603,206,264.14/123,975.84
  6. Step 6: Final answer
    x = 101,658.57

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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.