Home / 148,404.08-204,787.32-87,971.60

Finding the Fourth Proportional to 148,404.08, 204,787.32 and 87,971.60

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Solution

The fourth proportional to 148,404.08, 204,787.32 and 87,971.60 is: 121,394.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,404.08 : 204,787.32 = 87,971.60 : x
  2. Step 2: Convert to fraction form
    148,404.08/204,787.32 = 87,971.60/x
  3. Step 3: Cross multiply
    148,404.08x = 204,787.32 × 87,971.60
  4. Step 4: Simplify right side
    148,404.08x = 18,015,468,200.11
  5. Step 5: Solve for x
    x = 18,015,468,200.11/148,404.08
  6. Step 6: Final answer
    x = 121,394.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.