Home / 168,048.48-231,896.09-100,070.45

Finding the Fourth Proportional to 168,048.48, 231,896.09 and 100,070.45

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Solution

The fourth proportional to 168,048.48, 231,896.09 and 100,070.45 is: 138,090.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,048.48 : 231,896.09 = 100,070.45 : x
  2. Step 2: Convert to fraction form
    168,048.48/231,896.09 = 100,070.45/x
  3. Step 3: Cross multiply
    168,048.48x = 231,896.09 × 100,070.45
  4. Step 4: Simplify right side
    168,048.48x = 23,205,946,079.54
  5. Step 5: Solve for x
    x = 23,205,946,079.54/168,048.48
  6. Step 6: Final answer
    x = 138,090.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.