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Finding the Fourth Proportional to 82,500.30, 123,750.45 and 73,946.70

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Solution

The fourth proportional to 82,500.30, 123,750.45 and 73,946.70 is: 110,920.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,500.30 : 123,750.45 = 73,946.70 : x
  2. Step 2: Convert to fraction form
    82,500.30/123,750.45 = 73,946.70/x
  3. Step 3: Cross multiply
    82,500.30x = 123,750.45 × 73,946.70
  4. Step 4: Simplify right side
    82,500.30x = 9,150,937,401.02
  5. Step 5: Solve for x
    x = 9,150,937,401.02/82,500.30
  6. Step 6: Final answer
    x = 110,920.05

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1.5x scale

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.