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Finding the Fourth Proportional to 127,244.40, 190,866.60 and 97,719.90

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Solution

The fourth proportional to 127,244.40, 190,866.60 and 97,719.90 is: 146,579.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,244.40 : 190,866.60 = 97,719.90 : x
  2. Step 2: Convert to fraction form
    127,244.40/190,866.60 = 97,719.90/x
  3. Step 3: Cross multiply
    127,244.40x = 190,866.60 × 97,719.90
  4. Step 4: Simplify right side
    127,244.40x = 18,651,465,065.34
  5. Step 5: Solve for x
    x = 18,651,465,065.34/127,244.40
  6. Step 6: Final answer
    x = 146,579.85

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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.