Home / 121,927.67-168,317.72-91,724.52

Finding the Fourth Proportional to 121,927.67, 168,317.72 and 91,724.52

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Solution

The fourth proportional to 121,927.67, 168,317.72 and 91,724.52 is: 126,623.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,927.67 : 168,317.72 = 91,724.52 : x
  2. Step 2: Convert to fraction form
    121,927.67/168,317.72 = 91,724.52/x
  3. Step 3: Cross multiply
    121,927.67x = 168,317.72 × 91,724.52
  4. Step 4: Simplify right side
    121,927.67x = 15,438,861,615.87
  5. Step 5: Solve for x
    x = 15,438,861,615.87/121,927.67
  6. Step 6: Final answer
    x = 126,623.12

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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.