Home / 172,116.20-257,954.38-138,851.93

Finding the Fourth Proportional to 172,116.20, 257,954.38 and 138,851.93

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Solution

The fourth proportional to 172,116.20, 257,954.38 and 138,851.93 is: 208,100.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,116.20 : 257,954.38 = 138,851.93 : x
  2. Step 2: Convert to fraction form
    172,116.20/257,954.38 = 138,851.93/x
  3. Step 3: Cross multiply
    172,116.20x = 257,954.38 × 138,851.93
  4. Step 4: Simplify right side
    172,116.20x = 35,817,463,514.95
  5. Step 5: Solve for x
    x = 35,817,463,514.95/172,116.20
  6. Step 6: Final answer
    x = 208,100.48

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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.