Home / 140,005.67-209,115.88-126,658.08

Finding the Fourth Proportional to 140,005.67, 209,115.88 and 126,658.08

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Solution

The fourth proportional to 140,005.67, 209,115.88 and 126,658.08 is: 189,179.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,005.67 : 209,115.88 = 126,658.08 : x
  2. Step 2: Convert to fraction form
    140,005.67/209,115.88 = 126,658.08/x
  3. Step 3: Cross multiply
    140,005.67x = 209,115.88 × 126,658.08
  4. Step 4: Simplify right side
    140,005.67x = 26,486,215,541.67
  5. Step 5: Solve for x
    x = 26,486,215,541.67/140,005.67
  6. Step 6: Final answer
    x = 189,179.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.