Home / 198,557.63-274,009.20-107,913.32

Finding the Fourth Proportional to 198,557.63, 274,009.20 and 107,913.32

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Solution

The fourth proportional to 198,557.63, 274,009.20 and 107,913.32 is: 148,920.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,557.63 : 274,009.20 = 107,913.32 : x
  2. Step 2: Convert to fraction form
    198,557.63/274,009.20 = 107,913.32/x
  3. Step 3: Cross multiply
    198,557.63x = 274,009.20 × 107,913.32
  4. Step 4: Simplify right side
    198,557.63x = 29,569,242,482.54
  5. Step 5: Solve for x
    x = 29,569,242,482.54/198,557.63
  6. Step 6: Final answer
    x = 148,920.20

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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.