Home / 155,269.13-231,751.79-133,830.05

Finding the Fourth Proportional to 155,269.13, 231,751.79 and 133,830.05

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Solution

The fourth proportional to 155,269.13, 231,751.79 and 133,830.05 is: 199,752.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,269.13 : 231,751.79 = 133,830.05 : x
  2. Step 2: Convert to fraction form
    155,269.13/231,751.79 = 133,830.05/x
  3. Step 3: Cross multiply
    155,269.13x = 231,751.79 × 133,830.05
  4. Step 4: Simplify right side
    155,269.13x = 31,015,351,815.38
  5. Step 5: Solve for x
    x = 31,015,351,815.38/155,269.13
  6. Step 6: Final answer
    x = 199,752.22

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.