Home / 123,943.96-171,021.54-70,217.88

Finding the Fourth Proportional to 123,943.96, 171,021.54 and 70,217.88

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Solution

The fourth proportional to 123,943.96, 171,021.54 and 70,217.88 is: 96,888.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,943.96 : 171,021.54 = 70,217.88 : x
  2. Step 2: Convert to fraction form
    123,943.96/171,021.54 = 70,217.88/x
  3. Step 3: Cross multiply
    123,943.96x = 171,021.54 × 70,217.88
  4. Step 4: Simplify right side
    123,943.96x = 12,008,769,973.14
  5. Step 5: Solve for x
    x = 12,008,769,973.14/123,943.96
  6. Step 6: Final answer
    x = 96,888.71

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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.