Home / 96,750.20-145,125.30-73,130.60

Finding the Fourth Proportional to 96,750.20, 145,125.30 and 73,130.60

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Solution

The fourth proportional to 96,750.20, 145,125.30 and 73,130.60 is: 109,695.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,750.20 : 145,125.30 = 73,130.60 : x
  2. Step 2: Convert to fraction form
    96,750.20/145,125.30 = 73,130.60/x
  3. Step 3: Cross multiply
    96,750.20x = 145,125.30 × 73,130.60
  4. Step 4: Simplify right side
    96,750.20x = 10,613,100,264.18
  5. Step 5: Solve for x
    x = 10,613,100,264.18/96,750.20
  6. Step 6: Final answer
    x = 109,695.90

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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.