Home / 115,146-172,440.36-55,834.80

Finding the Fourth Proportional to 115,146, 172,440.36 and 55,834.80

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Solution

The fourth proportional to 115,146, 172,440.36 and 55,834.80 is: 83,617.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,146 : 172,440.36 = 55,834.80 : x
  2. Step 2: Convert to fraction form
    115,146/172,440.36 = 55,834.80/x
  3. Step 3: Cross multiply
    115,146x = 172,440.36 × 55,834.80
  4. Step 4: Simplify right side
    115,146x = 9,628,173,012.53
  5. Step 5: Solve for x
    x = 9,628,173,012.53/115,146
  6. Step 6: Final answer
    x = 83,617.09

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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.