Home / 100,749.72-151,124.84-48,147.24

Finding the Fourth Proportional to 100,749.72, 151,124.84 and 48,147.24

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Solution

The fourth proportional to 100,749.72, 151,124.84 and 48,147.24 is: 72,220.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,749.72 : 151,124.84 = 48,147.24 : x
  2. Step 2: Convert to fraction form
    100,749.72/151,124.84 = 48,147.24/x
  3. Step 3: Cross multiply
    100,749.72x = 151,124.84 × 48,147.24
  4. Step 4: Simplify right side
    100,749.72x = 7,276,243,941.44
  5. Step 5: Solve for x
    x = 7,276,243,941.44/100,749.72
  6. Step 6: Final answer
    x = 72,220.98

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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.