Home / 100,949.34-151,431.28-40,948.98

Finding the Fourth Proportional to 100,949.34, 151,431.28 and 40,948.98

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Solution

The fourth proportional to 100,949.34, 151,431.28 and 40,948.98 is: 61,426.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,949.34 : 151,431.28 = 40,948.98 : x
  2. Step 2: Convert to fraction form
    100,949.34/151,431.28 = 40,948.98/x
  3. Step 3: Cross multiply
    100,949.34x = 151,431.28 × 40,948.98
  4. Step 4: Simplify right side
    100,949.34x = 6,200,956,456.09
  5. Step 5: Solve for x
    x = 6,200,956,456.09/100,949.34
  6. Step 6: Final answer
    x = 61,426.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.