Home / 204,746.76-307,120.08-80,000.28

Finding the Fourth Proportional to 204,746.76, 307,120.08 and 80,000.28

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Solution

The fourth proportional to 204,746.76, 307,120.08 and 80,000.28 is: 120,000.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,746.76 : 307,120.08 = 80,000.28 : x
  2. Step 2: Convert to fraction form
    204,746.76/307,120.08 = 80,000.28/x
  3. Step 3: Cross multiply
    204,746.76x = 307,120.08 × 80,000.28
  4. Step 4: Simplify right side
    204,746.76x = 24,569,692,393.62
  5. Step 5: Solve for x
    x = 24,569,692,393.62/204,746.76
  6. Step 6: Final answer
    x = 120,000.40

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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.