Home / 188,170.09-259,672.51-102,129.24

Finding the Fourth Proportional to 188,170.09, 259,672.51 and 102,129.24

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Solution

The fourth proportional to 188,170.09, 259,672.51 and 102,129.24 is: 140,937.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,170.09 : 259,672.51 = 102,129.24 : x
  2. Step 2: Convert to fraction form
    188,170.09/259,672.51 = 102,129.24/x
  3. Step 3: Cross multiply
    188,170.09x = 259,672.51 × 102,129.24
  4. Step 4: Simplify right side
    188,170.09x = 26,520,156,095.19
  5. Step 5: Solve for x
    x = 26,520,156,095.19/188,170.09
  6. Step 6: Final answer
    x = 140,937.15

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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.