Home / 101,899.79-152,849.54-66,831.23

Finding the Fourth Proportional to 101,899.79, 152,849.54 and 66,831.23

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Solution

The fourth proportional to 101,899.79, 152,849.54 and 66,831.23 is: 100,246.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,899.79 : 152,849.54 = 66,831.23 : x
  2. Step 2: Convert to fraction form
    101,899.79/152,849.54 = 66,831.23/x
  3. Step 3: Cross multiply
    101,899.79x = 152,849.54 × 66,831.23
  4. Step 4: Simplify right side
    101,899.79x = 10,215,122,428.98
  5. Step 5: Solve for x
    x = 10,215,122,428.98/101,899.79
  6. Step 6: Final answer
    x = 100,246.75

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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.