Home / 148,953.96-205,544.25-87,690.42

Finding the Fourth Proportional to 148,953.96, 205,544.25 and 87,690.42

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Solution

The fourth proportional to 148,953.96, 205,544.25 and 87,690.42 is: 121,005.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,953.96 : 205,544.25 = 87,690.42 : x
  2. Step 2: Convert to fraction form
    148,953.96/205,544.25 = 87,690.42/x
  3. Step 3: Cross multiply
    148,953.96x = 205,544.25 × 87,690.42
  4. Step 4: Simplify right side
    148,953.96x = 18,024,261,611.09
  5. Step 5: Solve for x
    x = 18,024,261,611.09/148,953.96
  6. Step 6: Final answer
    x = 121,005.59

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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.