Home / 123,747.49-170,771.63-67,158.87

Finding the Fourth Proportional to 123,747.49, 170,771.63 and 67,158.87

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Solution

The fourth proportional to 123,747.49, 170,771.63 and 67,158.87 is: 92,679.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,747.49 : 170,771.63 = 67,158.87 : x
  2. Step 2: Convert to fraction form
    123,747.49/170,771.63 = 67,158.87/x
  3. Step 3: Cross multiply
    123,747.49x = 170,771.63 × 67,158.87
  4. Step 4: Simplify right side
    123,747.49x = 11,468,828,722.67
  5. Step 5: Solve for x
    x = 11,468,828,722.67/123,747.49
  6. Step 6: Final answer
    x = 92,679.28

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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.