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Finding the Fourth Proportional to 141,773.40, 212,660.10 and 127,776.60

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Solution

The fourth proportional to 141,773.40, 212,660.10 and 127,776.60 is: 191,664.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,773.40 : 212,660.10 = 127,776.60 : x
  2. Step 2: Convert to fraction form
    141,773.40/212,660.10 = 127,776.60/x
  3. Step 3: Cross multiply
    141,773.40x = 212,660.10 × 127,776.60
  4. Step 4: Simplify right side
    141,773.40x = 27,172,984,533.66
  5. Step 5: Solve for x
    x = 27,172,984,533.66/141,773.40
  6. Step 6: Final answer
    x = 191,664.90

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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.