Home / 142,910.88-197,228.16-79,261.12

Finding the Fourth Proportional to 142,910.88, 197,228.16 and 79,261.12

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Solution

The fourth proportional to 142,910.88, 197,228.16 and 79,261.12 is: 109,386.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,910.88 : 197,228.16 = 79,261.12 : x
  2. Step 2: Convert to fraction form
    142,910.88/197,228.16 = 79,261.12/x
  3. Step 3: Cross multiply
    142,910.88x = 197,228.16 × 79,261.12
  4. Step 4: Simplify right side
    142,910.88x = 15,632,524,857.14
  5. Step 5: Solve for x
    x = 15,632,524,857.14/142,910.88
  6. Step 6: Final answer
    x = 109,386.53

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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.