Home / 155,428.20-233,174.70-88,813.80

Finding the Fourth Proportional to 155,428.20, 233,174.70 and 88,813.80

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Solution

The fourth proportional to 155,428.20, 233,174.70 and 88,813.80 is: 133,239.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,428.20 : 233,174.70 = 88,813.80 : x
  2. Step 2: Convert to fraction form
    155,428.20/233,174.70 = 88,813.80/x
  3. Step 3: Cross multiply
    155,428.20x = 233,174.70 × 88,813.80
  4. Step 4: Simplify right side
    155,428.20x = 20,709,131,170.86
  5. Step 5: Solve for x
    x = 20,709,131,170.86/155,428.20
  6. Step 6: Final answer
    x = 133,239.21

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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.