Home / 142,949.83-197,294.39-79,308.13

Finding the Fourth Proportional to 142,949.83, 197,294.39 and 79,308.13

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Solution

The fourth proportional to 142,949.83, 197,294.39 and 79,308.13 is: 109,458.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,949.83 : 197,294.39 = 79,308.13 : x
  2. Step 2: Convert to fraction form
    142,949.83/197,294.39 = 79,308.13/x
  3. Step 3: Cross multiply
    142,949.83x = 197,294.39 × 79,308.13
  4. Step 4: Simplify right side
    142,949.83x = 15,647,049,130.39
  5. Step 5: Solve for x
    x = 15,647,049,130.39/142,949.83
  6. Step 6: Final answer
    x = 109,458.33

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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.