Home / 198,860.03-274,430.15-108,219.81

Finding the Fourth Proportional to 198,860.03, 274,430.15 and 108,219.81

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Solution

The fourth proportional to 198,860.03, 274,430.15 and 108,219.81 is: 149,345.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,860.03 : 274,430.15 = 108,219.81 : x
  2. Step 2: Convert to fraction form
    198,860.03/274,430.15 = 108,219.81/x
  3. Step 3: Cross multiply
    198,860.03x = 274,430.15 × 108,219.81
  4. Step 4: Simplify right side
    198,860.03x = 29,698,778,150.17
  5. Step 5: Solve for x
    x = 29,698,778,150.17/198,860.03
  6. Step 6: Final answer
    x = 149,345.14

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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.