Home / 140,960.40-211,440.60-138,886.80

Finding the Fourth Proportional to 140,960.40, 211,440.60 and 138,886.80

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Solution

The fourth proportional to 140,960.40, 211,440.60 and 138,886.80 is: 208,330.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,960.40 : 211,440.60 = 138,886.80 : x
  2. Step 2: Convert to fraction form
    140,960.40/211,440.60 = 138,886.80/x
  3. Step 3: Cross multiply
    140,960.40x = 211,440.60 × 138,886.80
  4. Step 4: Simplify right side
    140,960.40x = 29,366,308,324.08
  5. Step 5: Solve for x
    x = 29,366,308,324.08/140,960.40
  6. Step 6: Final answer
    x = 208,330.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.