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Finding the Fourth Proportional to 96,424.40, 144,442.20 and 66,875.60

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Solution

The fourth proportional to 96,424.40, 144,442.20 and 66,875.60 is: 100,178.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,424.40 : 144,442.20 = 66,875.60 : x
  2. Step 2: Convert to fraction form
    96,424.40/144,442.20 = 66,875.60/x
  3. Step 3: Cross multiply
    96,424.40x = 144,442.20 × 66,875.60
  4. Step 4: Simplify right side
    96,424.40x = 9,659,658,790.32
  5. Step 5: Solve for x
    x = 9,659,658,790.32/96,424.40
  6. Step 6: Final answer
    x = 100,178.57

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.