Home / 123,928.84-171,021.97-70,217.48

Finding the Fourth Proportional to 123,928.84, 171,021.97 and 70,217.48

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Solution

The fourth proportional to 123,928.84, 171,021.97 and 70,217.48 is: 96,900.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,928.84 : 171,021.97 = 70,217.48 : x
  2. Step 2: Convert to fraction form
    123,928.84/171,021.97 = 70,217.48/x
  3. Step 3: Cross multiply
    123,928.84x = 171,021.97 × 70,217.48
  4. Step 4: Simplify right side
    123,928.84x = 12,008,731,878.39
  5. Step 5: Solve for x
    x = 12,008,731,878.39/123,928.84
  6. Step 6: Final answer
    x = 96,900.22

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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.