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Finding the Fourth Proportional to 140,999.49, 211,217.25 and 84,808.59

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Solution

The fourth proportional to 140,999.49, 211,217.25 and 84,808.59 is: 127,043.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,999.49 : 211,217.25 = 84,808.59 : x
  2. Step 2: Convert to fraction form
    140,999.49/211,217.25 = 84,808.59/x
  3. Step 3: Cross multiply
    140,999.49x = 211,217.25 × 84,808.59
  4. Step 4: Simplify right side
    140,999.49x = 17,913,037,156.18
  5. Step 5: Solve for x
    x = 17,913,037,156.18/140,999.49
  6. Step 6: Final answer
    x = 127,043.28

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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.