Home / 148,118.64-204,403.16-80,135.40

Finding the Fourth Proportional to 148,118.64, 204,403.16 and 80,135.40

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Solution

The fourth proportional to 148,118.64, 204,403.16 and 80,135.40 is: 110,586.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,118.64 : 204,403.16 = 80,135.40 : x
  2. Step 2: Convert to fraction form
    148,118.64/204,403.16 = 80,135.40/x
  3. Step 3: Cross multiply
    148,118.64x = 204,403.16 × 80,135.40
  4. Step 4: Simplify right side
    148,118.64x = 16,379,928,587.19
  5. Step 5: Solve for x
    x = 16,379,928,587.19/148,118.64
  6. Step 6: Final answer
    x = 110,586.54

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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.