Home / 194,731.20-291,878.10-82,392.30

Finding the Fourth Proportional to 194,731.20, 291,878.10 and 82,392.30

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Solution

The fourth proportional to 194,731.20, 291,878.10 and 82,392.30 is: 123,495.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,731.20 : 291,878.10 = 82,392.30 : x
  2. Step 2: Convert to fraction form
    194,731.20/291,878.10 = 82,392.30/x
  3. Step 3: Cross multiply
    194,731.20x = 291,878.10 × 82,392.30
  4. Step 4: Simplify right side
    194,731.20x = 24,048,507,978.63
  5. Step 5: Solve for x
    x = 24,048,507,978.63/194,731.20
  6. Step 6: Final answer
    x = 123,495.92

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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.