Home / 155,463.06-231,982.13-138,707.94

Finding the Fourth Proportional to 155,463.06, 231,982.13 and 138,707.94

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Solution

The fourth proportional to 155,463.06, 231,982.13 and 138,707.94 is: 206,980.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,463.06 : 231,982.13 = 138,707.94 : x
  2. Step 2: Convert to fraction form
    155,463.06/231,982.13 = 138,707.94/x
  3. Step 3: Cross multiply
    155,463.06x = 231,982.13 × 138,707.94
  4. Step 4: Simplify right side
    155,463.06x = 32,177,763,369.11
  5. Step 5: Solve for x
    x = 32,177,763,369.11/155,463.06
  6. Step 6: Final answer
    x = 206,980.12

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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.