Home / 172,300.09-237,739.26-100,666.27

Finding the Fourth Proportional to 172,300.09, 237,739.26 and 100,666.27

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Solution

The fourth proportional to 172,300.09, 237,739.26 and 100,666.27 is: 138,899.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,300.09 : 237,739.26 = 100,666.27 : x
  2. Step 2: Convert to fraction form
    172,300.09/237,739.26 = 100,666.27/x
  3. Step 3: Cross multiply
    172,300.09x = 237,739.26 × 100,666.27
  4. Step 4: Simplify right side
    172,300.09x = 23,932,324,536.76
  5. Step 5: Solve for x
    x = 23,932,324,536.76/172,300.09
  6. Step 6: Final answer
    x = 138,899.08

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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.