Home / 140,012.16-209,125.76-126,664.71

Finding the Fourth Proportional to 140,012.16, 209,125.76 and 126,664.71

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Solution

The fourth proportional to 140,012.16, 209,125.76 and 126,664.71 is: 189,189.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,012.16 : 209,125.76 = 126,664.71 : x
  2. Step 2: Convert to fraction form
    140,012.16/209,125.76 = 126,664.71/x
  3. Step 3: Cross multiply
    140,012.16x = 209,125.76 × 126,664.71
  4. Step 4: Simplify right side
    140,012.16x = 26,488,853,743.93
  5. Step 5: Solve for x
    x = 26,488,853,743.93/140,012.16
  6. Step 6: Final answer
    x = 189,189.67

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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.