Home / 142,711.26-196,941.54-79,053.18

Finding the Fourth Proportional to 142,711.26, 196,941.54 and 79,053.18

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Solution

The fourth proportional to 142,711.26, 196,941.54 and 79,053.18 is: 109,093.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,711.26 : 196,941.54 = 79,053.18 : x
  2. Step 2: Convert to fraction form
    142,711.26/196,941.54 = 79,053.18/x
  3. Step 3: Cross multiply
    142,711.26x = 196,941.54 × 79,053.18
  4. Step 4: Simplify right side
    142,711.26x = 15,568,855,011.10
  5. Step 5: Solve for x
    x = 15,568,855,011.10/142,711.26
  6. Step 6: Final answer
    x = 109,093.39

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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.