Home / 172,419.19-237,902.82-100,785.34

Finding the Fourth Proportional to 172,419.19, 237,902.82 and 100,785.34

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Solution

The fourth proportional to 172,419.19, 237,902.82 and 100,785.34 is: 139,062.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,419.19 : 237,902.82 = 100,785.34 : x
  2. Step 2: Convert to fraction form
    172,419.19/237,902.82 = 100,785.34/x
  3. Step 3: Cross multiply
    172,419.19x = 237,902.82 × 100,785.34
  4. Step 4: Simplify right side
    172,419.19x = 23,977,116,600.66
  5. Step 5: Solve for x
    x = 23,977,116,600.66/172,419.19
  6. Step 6: Final answer
    x = 139,062.92

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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.