Home / 126,601.47-189,968.22-91,828.17

Finding the Fourth Proportional to 126,601.47, 189,968.22 and 91,828.17

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Solution

The fourth proportional to 126,601.47, 189,968.22 and 91,828.17 is: 137,790.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,601.47 : 189,968.22 = 91,828.17 : x
  2. Step 2: Convert to fraction form
    126,601.47/189,968.22 = 91,828.17/x
  3. Step 3: Cross multiply
    126,601.47x = 189,968.22 × 91,828.17
  4. Step 4: Simplify right side
    126,601.47x = 17,444,434,000.76
  5. Step 5: Solve for x
    x = 17,444,434,000.76/126,601.47
  6. Step 6: Final answer
    x = 137,790.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.