Home / 115,036.60-172,166.10-101,039.80

Finding the Fourth Proportional to 115,036.60, 172,166.10 and 101,039.80

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Solution

The fourth proportional to 115,036.60, 172,166.10 and 101,039.80 is: 151,218.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,036.60 : 172,166.10 = 101,039.80 : x
  2. Step 2: Convert to fraction form
    115,036.60/172,166.10 = 101,039.80/x
  3. Step 3: Cross multiply
    115,036.60x = 172,166.10 × 101,039.80
  4. Step 4: Simplify right side
    115,036.60x = 17,395,628,310.78
  5. Step 5: Solve for x
    x = 17,395,628,310.78/115,036.60
  6. Step 6: Final answer
    x = 151,218.21

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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.