Home / 136,811.43-205,216.07-73,661.13

Finding the Fourth Proportional to 136,811.43, 205,216.07 and 73,661.13

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Solution

The fourth proportional to 136,811.43, 205,216.07 and 73,661.13 is: 110,491.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,811.43 : 205,216.07 = 73,661.13 : x
  2. Step 2: Convert to fraction form
    136,811.43/205,216.07 = 73,661.13/x
  3. Step 3: Cross multiply
    136,811.43x = 205,216.07 × 73,661.13
  4. Step 4: Simplify right side
    136,811.43x = 15,116,447,242.05
  5. Step 5: Solve for x
    x = 15,116,447,242.05/136,811.43
  6. Step 6: Final answer
    x = 110,491.11

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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.