Home / 140,020.74-209,138.28-126,673.08

Finding the Fourth Proportional to 140,020.74, 209,138.28 and 126,673.08

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Solution

The fourth proportional to 140,020.74, 209,138.28 and 126,673.08 is: 189,201.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,020.74 : 209,138.28 = 126,673.08 : x
  2. Step 2: Convert to fraction form
    140,020.74/209,138.28 = 126,673.08/x
  3. Step 3: Cross multiply
    140,020.74x = 209,138.28 × 126,673.08
  4. Step 4: Simplify right side
    140,020.74x = 26,492,190,073.50
  5. Step 5: Solve for x
    x = 26,492,190,073.50/140,020.74
  6. Step 6: Final answer
    x = 189,201.90

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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.