Home / 100,702.28-151,049.43-34,142.53

Finding the Fourth Proportional to 100,702.28, 151,049.43 and 34,142.53

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Solution

The fourth proportional to 100,702.28, 151,049.43 and 34,142.53 is: 51,212.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,702.28 : 151,049.43 = 34,142.53 : x
  2. Step 2: Convert to fraction form
    100,702.28/151,049.43 = 34,142.53/x
  3. Step 3: Cross multiply
    100,702.28x = 151,049.43 × 34,142.53
  4. Step 4: Simplify right side
    100,702.28x = 5,157,209,695.26
  5. Step 5: Solve for x
    x = 5,157,209,695.26/100,702.28
  6. Step 6: Final answer
    x = 51,212.44

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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.