Home / 91,166.78-136,696.18-31,174.04

Finding the Fourth Proportional to 91,166.78, 136,696.18 and 31,174.04

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Solution

The fourth proportional to 91,166.78, 136,696.18 and 31,174.04 is: 46,742.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,166.78 : 136,696.18 = 31,174.04 : x
  2. Step 2: Convert to fraction form
    91,166.78/136,696.18 = 31,174.04/x
  3. Step 3: Cross multiply
    91,166.78x = 136,696.18 × 31,174.04
  4. Step 4: Simplify right side
    91,166.78x = 4,261,372,183.17
  5. Step 5: Solve for x
    x = 4,261,372,183.17/91,166.78
  6. Step 6: Final answer
    x = 46,742.60

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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.