Home / 198,587.51-274,056.10-107,949.57

Finding the Fourth Proportional to 198,587.51, 274,056.10 and 107,949.57

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Solution

The fourth proportional to 198,587.51, 274,056.10 and 107,949.57 is: 148,973.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,587.51 : 274,056.10 = 107,949.57 : x
  2. Step 2: Convert to fraction form
    198,587.51/274,056.10 = 107,949.57/x
  3. Step 3: Cross multiply
    198,587.51x = 274,056.10 × 107,949.57
  4. Step 4: Simplify right side
    198,587.51x = 29,584,238,150.88
  5. Step 5: Solve for x
    x = 29,584,238,150.88/198,587.51
  6. Step 6: Final answer
    x = 148,973.31

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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.