Home / 123,928.88-171,021.26-70,213.79

Finding the Fourth Proportional to 123,928.88, 171,021.26 and 70,213.79

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Solution

The fourth proportional to 123,928.88, 171,021.26 and 70,213.79 is: 96,894.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,928.88 : 171,021.26 = 70,213.79 : x
  2. Step 2: Convert to fraction form
    123,928.88/171,021.26 = 70,213.79/x
  3. Step 3: Cross multiply
    123,928.88x = 171,021.26 × 70,213.79
  4. Step 4: Simplify right side
    123,928.88x = 12,008,051,438.26
  5. Step 5: Solve for x
    x = 12,008,051,438.26/123,928.88
  6. Step 6: Final answer
    x = 96,894.70

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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.