Home / 198,656.15-274,151.18-108,018.36

Finding the Fourth Proportional to 198,656.15, 274,151.18 and 108,018.36

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Solution

The fourth proportional to 198,656.15, 274,151.18 and 108,018.36 is: 149,068.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,656.15 : 274,151.18 = 108,018.36 : x
  2. Step 2: Convert to fraction form
    198,656.15/274,151.18 = 108,018.36/x
  3. Step 3: Cross multiply
    198,656.15x = 274,151.18 × 108,018.36
  4. Step 4: Simplify right side
    198,656.15x = 29,613,361,125.71
  5. Step 5: Solve for x
    x = 29,613,361,125.71/198,656.15
  6. Step 6: Final answer
    x = 149,068.44

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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.