Home / 153,327.11-211,591.43-85,342.62

Finding the Fourth Proportional to 153,327.11, 211,591.43 and 85,342.62

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Solution

The fourth proportional to 153,327.11, 211,591.43 and 85,342.62 is: 117,772.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,327.11 : 211,591.43 = 85,342.62 : x
  2. Step 2: Convert to fraction form
    153,327.11/211,591.43 = 85,342.62/x
  3. Step 3: Cross multiply
    153,327.11x = 211,591.43 × 85,342.62
  4. Step 4: Simplify right side
    153,327.11x = 18,057,766,579.03
  5. Step 5: Solve for x
    x = 18,057,766,579.03/153,327.11
  6. Step 6: Final answer
    x = 117,772.82

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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.