Home / 198,994.32-274,605.84-118,403.40

Finding the Fourth Proportional to 198,994.32, 274,605.84 and 118,403.40

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Solution

The fourth proportional to 198,994.32, 274,605.84 and 118,403.40 is: 163,392.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,994.32 : 274,605.84 = 118,403.40 : x
  2. Step 2: Convert to fraction form
    198,994.32/274,605.84 = 118,403.40/x
  3. Step 3: Cross multiply
    198,994.32x = 274,605.84 × 118,403.40
  4. Step 4: Simplify right side
    198,994.32x = 32,514,265,115.86
  5. Step 5: Solve for x
    x = 32,514,265,115.86/198,994.32
  6. Step 6: Final answer
    x = 163,392.93

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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.