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Finding the Fourth Proportional to 140,581.60, 210,872.40 and 127,022.20

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Solution

The fourth proportional to 140,581.60, 210,872.40 and 127,022.20 is: 190,533.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,581.60 : 210,872.40 = 127,022.20 : x
  2. Step 2: Convert to fraction form
    140,581.60/210,872.40 = 127,022.20/x
  3. Step 3: Cross multiply
    140,581.60x = 210,872.40 × 127,022.20
  4. Step 4: Simplify right side
    140,581.60x = 26,785,476,167.28
  5. Step 5: Solve for x
    x = 26,785,476,167.28/140,581.60
  6. Step 6: Final answer
    x = 190,533.30

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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.