Home / 134,535.20-201,540.08-81,813.92

Finding the Fourth Proportional to 134,535.20, 201,540.08 and 81,813.92

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Solution

The fourth proportional to 134,535.20, 201,540.08 and 81,813.92 is: 122,561.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,535.20 : 201,540.08 = 81,813.92 : x
  2. Step 2: Convert to fraction form
    134,535.20/201,540.08 = 81,813.92/x
  3. Step 3: Cross multiply
    134,535.20x = 201,540.08 × 81,813.92
  4. Step 4: Simplify right side
    134,535.20x = 16,488,783,981.91
  5. Step 5: Solve for x
    x = 16,488,783,981.91/134,535.20
  6. Step 6: Final answer
    x = 122,561.11

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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.