Home / 441,631.72-662,439.90-109,207.72

Finding the Fourth Proportional to 441,631.72, 662,439.90 and 109,207.72

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Solution

The fourth proportional to 441,631.72, 662,439.90 and 109,207.72 is: 163,809.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,631.72 : 662,439.90 = 109,207.72 : x
  2. Step 2: Convert to fraction form
    441,631.72/662,439.90 = 109,207.72/x
  3. Step 3: Cross multiply
    441,631.72x = 662,439.90 × 109,207.72
  4. Step 4: Simplify right side
    441,631.72x = 72,343,551,116.03
  5. Step 5: Solve for x
    x = 72,343,551,116.03/441,631.72
  6. Step 6: Final answer
    x = 163,809.68

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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.