Home / 141,409.17-195,116.67-79,321.67

Finding the Fourth Proportional to 141,409.17, 195,116.67 and 79,321.67

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Solution

The fourth proportional to 141,409.17, 195,116.67 and 79,321.67 is: 109,448.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,409.17 : 195,116.67 = 79,321.67 : x
  2. Step 2: Convert to fraction form
    141,409.17/195,116.67 = 79,321.67/x
  3. Step 3: Cross multiply
    141,409.17x = 195,116.67 × 79,321.67
  4. Step 4: Simplify right side
    141,409.17x = 15,476,979,133.66
  5. Step 5: Solve for x
    x = 15,476,979,133.66/141,409.17
  6. Step 6: Final answer
    x = 109,448.20

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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.