Home / 142,992.15-197,329.41-79,329.93

Finding the Fourth Proportional to 142,992.15, 197,329.41 and 79,329.93

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Solution

The fourth proportional to 142,992.15, 197,329.41 and 79,329.93 is: 109,475.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,992.15 : 197,329.41 = 79,329.93 : x
  2. Step 2: Convert to fraction form
    142,992.15/197,329.41 = 79,329.93/x
  3. Step 3: Cross multiply
    142,992.15x = 197,329.41 × 79,329.93
  4. Step 4: Simplify right side
    142,992.15x = 15,654,128,282.24
  5. Step 5: Solve for x
    x = 15,654,128,282.24/142,992.15
  6. Step 6: Final answer
    x = 109,475.44

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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.