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Finding the Fourth Proportional to 148,477.36, 222,419.36 and 89,280.64

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Solution

The fourth proportional to 148,477.36, 222,419.36 and 89,280.64 is: 133,742.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,477.36 : 222,419.36 = 89,280.64 : x
  2. Step 2: Convert to fraction form
    148,477.36/222,419.36 = 89,280.64/x
  3. Step 3: Cross multiply
    148,477.36x = 222,419.36 × 89,280.64
  4. Step 4: Simplify right side
    148,477.36x = 19,857,742,809.19
  5. Step 5: Solve for x
    x = 19,857,742,809.19/148,477.36
  6. Step 6: Final answer
    x = 133,742.56

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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.