Home / 198,557.60-274,011-107,913.56

Finding the Fourth Proportional to 198,557.60, 274,011 and 107,913.56

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Solution

The fourth proportional to 198,557.60, 274,011 and 107,913.56 is: 148,921.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,557.60 : 274,011 = 107,913.56 : x
  2. Step 2: Convert to fraction form
    198,557.60/274,011 = 107,913.56/x
  3. Step 3: Cross multiply
    198,557.60x = 274,011 × 107,913.56
  4. Step 4: Simplify right side
    198,557.60x = 29,569,502,489.16
  5. Step 5: Solve for x
    x = 29,569,502,489.16/198,557.60
  6. Step 6: Final answer
    x = 148,921.53

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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.