Home / 215,171.10-296,732.30-137,671.25

Finding the Fourth Proportional to 215,171.10, 296,732.30 and 137,671.25

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Solution

The fourth proportional to 215,171.10, 296,732.30 and 137,671.25 is: 189,855.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,171.10 : 296,732.30 = 137,671.25 : x
  2. Step 2: Convert to fraction form
    215,171.10/296,732.30 = 137,671.25/x
  3. Step 3: Cross multiply
    215,171.10x = 296,732.30 × 137,671.25
  4. Step 4: Simplify right side
    215,171.10x = 40,851,504,484.36
  5. Step 5: Solve for x
    x = 40,851,504,484.36/215,171.10
  6. Step 6: Final answer
    x = 189,855.91

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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.