Home / 142,801.92-197,067.60-79,143.84

Finding the Fourth Proportional to 142,801.92, 197,067.60 and 79,143.84

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Solution

The fourth proportional to 142,801.92, 197,067.60 and 79,143.84 is: 109,219.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,801.92 : 197,067.60 = 79,143.84 : x
  2. Step 2: Convert to fraction form
    142,801.92/197,067.60 = 79,143.84/x
  3. Step 3: Cross multiply
    142,801.92x = 197,067.60 × 79,143.84
  4. Step 4: Simplify right side
    142,801.92x = 15,596,686,603.58
  5. Step 5: Solve for x
    x = 15,596,686,603.58/142,801.92
  6. Step 6: Final answer
    x = 109,219.03

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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.