Home / 140,005.53-209,115.89-126,658.08

Finding the Fourth Proportional to 140,005.53, 209,115.89 and 126,658.08

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Solution

The fourth proportional to 140,005.53, 209,115.89 and 126,658.08 is: 189,179.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,005.53 : 209,115.89 = 126,658.08 : x
  2. Step 2: Convert to fraction form
    140,005.53/209,115.89 = 126,658.08/x
  3. Step 3: Cross multiply
    140,005.53x = 209,115.89 × 126,658.08
  4. Step 4: Simplify right side
    140,005.53x = 26,486,216,491.60
  5. Step 5: Solve for x
    x = 26,486,216,491.60/140,005.53
  6. Step 6: Final answer
    x = 189,179.79

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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.