Home / 96,913.40-145,370.10-80,000.60

Finding the Fourth Proportional to 96,913.40, 145,370.10 and 80,000.60

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Solution

The fourth proportional to 96,913.40, 145,370.10 and 80,000.60 is: 120,000.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,913.40 : 145,370.10 = 80,000.60 : x
  2. Step 2: Convert to fraction form
    96,913.40/145,370.10 = 80,000.60/x
  3. Step 3: Cross multiply
    96,913.40x = 145,370.10 × 80,000.60
  4. Step 4: Simplify right side
    96,913.40x = 11,629,695,222.06
  5. Step 5: Solve for x
    x = 11,629,695,222.06/96,913.40
  6. Step 6: Final answer
    x = 120,000.90

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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.