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Finding the Fourth Proportional to 134,157.60, 185,136.30 and 73,728.90

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Solution

The fourth proportional to 134,157.60, 185,136.30 and 73,728.90 is: 101,745.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,157.60 : 185,136.30 = 73,728.90 : x
  2. Step 2: Convert to fraction form
    134,157.60/185,136.30 = 73,728.90/x
  3. Step 3: Cross multiply
    134,157.60x = 185,136.30 × 73,728.90
  4. Step 4: Simplify right side
    134,157.60x = 13,649,895,749.07
  5. Step 5: Solve for x
    x = 13,649,895,749.07/134,157.60
  6. Step 6: Final answer
    x = 101,745.23

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1.5x scale

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.