Home / 157,484.25-217,405.82-109,122.80

Finding the Fourth Proportional to 157,484.25, 217,405.82 and 109,122.80

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Solution

The fourth proportional to 157,484.25, 217,405.82 and 109,122.80 is: 150,643.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,484.25 : 217,405.82 = 109,122.80 : x
  2. Step 2: Convert to fraction form
    157,484.25/217,405.82 = 109,122.80/x
  3. Step 3: Cross multiply
    157,484.25x = 217,405.82 × 109,122.80
  4. Step 4: Simplify right side
    157,484.25x = 23,723,931,000.47
  5. Step 5: Solve for x
    x = 23,723,931,000.47/157,484.25
  6. Step 6: Final answer
    x = 150,643.20

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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.