Home / 142,711.25-196,941.54-79,053.17

Finding the Fourth Proportional to 142,711.25, 196,941.54 and 79,053.17

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Solution

The fourth proportional to 142,711.25, 196,941.54 and 79,053.17 is: 109,093.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,711.25 : 196,941.54 = 79,053.17 : x
  2. Step 2: Convert to fraction form
    142,711.25/196,941.54 = 79,053.17/x
  3. Step 3: Cross multiply
    142,711.25x = 196,941.54 × 79,053.17
  4. Step 4: Simplify right side
    142,711.25x = 15,568,853,041.68
  5. Step 5: Solve for x
    x = 15,568,853,041.68/142,711.25
  6. Step 6: Final answer
    x = 109,093.38

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1.5x scale

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.