Home / 140,046.25-209,176.40-126,698.67

Finding the Fourth Proportional to 140,046.25, 209,176.40 and 126,698.67

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Solution

The fourth proportional to 140,046.25, 209,176.40 and 126,698.67 is: 189,240.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,046.25 : 209,176.40 = 126,698.67 : x
  2. Step 2: Convert to fraction form
    140,046.25/209,176.40 = 126,698.67/x
  3. Step 3: Cross multiply
    140,046.25x = 209,176.40 × 126,698.67
  4. Step 4: Simplify right side
    140,046.25x = 26,502,370,970.16
  5. Step 5: Solve for x
    x = 26,502,370,970.16/140,046.25
  6. Step 6: Final answer
    x = 189,240.13

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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.