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Finding the Fourth Proportional to 127,248.40, 190,872.60 and 89,923.60

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Solution

The fourth proportional to 127,248.40, 190,872.60 and 89,923.60 is: 134,885.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,248.40 : 190,872.60 = 89,923.60 : x
  2. Step 2: Convert to fraction form
    127,248.40/190,872.60 = 89,923.60/x
  3. Step 3: Cross multiply
    127,248.40x = 190,872.60 × 89,923.60
  4. Step 4: Simplify right side
    127,248.40x = 17,163,951,333.36
  5. Step 5: Solve for x
    x = 17,163,951,333.36/127,248.40
  6. Step 6: Final answer
    x = 134,885.40

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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.