Home / 142,934.62-197,244.78-79,278.34

Finding the Fourth Proportional to 142,934.62, 197,244.78 and 79,278.34

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Solution

The fourth proportional to 142,934.62, 197,244.78 and 79,278.34 is: 109,401.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,934.62 : 197,244.78 = 79,278.34 : x
  2. Step 2: Convert to fraction form
    142,934.62/197,244.78 = 79,278.34/x
  3. Step 3: Cross multiply
    142,934.62x = 197,244.78 × 79,278.34
  4. Step 4: Simplify right side
    142,934.62x = 15,637,238,732.07
  5. Step 5: Solve for x
    x = 15,637,238,732.07/142,934.62
  6. Step 6: Final answer
    x = 109,401.34

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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.