Home / 188,330.11-259,897.38-103,447.18

Finding the Fourth Proportional to 188,330.11, 259,897.38 and 103,447.18

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Solution

The fourth proportional to 188,330.11, 259,897.38 and 103,447.18 is: 142,758.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,330.11 : 259,897.38 = 103,447.18 : x
  2. Step 2: Convert to fraction form
    188,330.11/259,897.38 = 103,447.18/x
  3. Step 3: Cross multiply
    188,330.11x = 259,897.38 × 103,447.18
  4. Step 4: Simplify right side
    188,330.11x = 26,885,649,750.90
  5. Step 5: Solve for x
    x = 26,885,649,750.90/188,330.11
  6. Step 6: Final answer
    x = 142,758.11

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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.