Home / 140,022.69-193,242.87-79,612.35

Finding the Fourth Proportional to 140,022.69, 193,242.87 and 79,612.35

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Solution

The fourth proportional to 140,022.69, 193,242.87 and 79,612.35 is: 109,871.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,022.69 : 193,242.87 = 79,612.35 : x
  2. Step 2: Convert to fraction form
    140,022.69/193,242.87 = 79,612.35/x
  3. Step 3: Cross multiply
    140,022.69x = 193,242.87 × 79,612.35
  4. Step 4: Simplify right side
    140,022.69x = 15,384,519,001.44
  5. Step 5: Solve for x
    x = 15,384,519,001.44/140,022.69
  6. Step 6: Final answer
    x = 109,871.61

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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.