Home / 145,964.34-218,942.46-40,780.44

Finding the Fourth Proportional to 145,964.34, 218,942.46 and 40,780.44

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Solution

The fourth proportional to 145,964.34, 218,942.46 and 40,780.44 is: 61,169.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,964.34 : 218,942.46 = 40,780.44 : x
  2. Step 2: Convert to fraction form
    145,964.34/218,942.46 = 40,780.44/x
  3. Step 3: Cross multiply
    145,964.34x = 218,942.46 × 40,780.44
  4. Step 4: Simplify right side
    145,964.34x = 8,928,569,853.48
  5. Step 5: Solve for x
    x = 8,928,569,853.48/145,964.34
  6. Step 6: Final answer
    x = 61,169.53

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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.