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Finding the Fourth Proportional to 73,300.20, 109,950.30 and 72,004.20

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Solution

The fourth proportional to 73,300.20, 109,950.30 and 72,004.20 is: 108,006.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,300.20 : 109,950.30 = 72,004.20 : x
  2. Step 2: Convert to fraction form
    73,300.20/109,950.30 = 72,004.20/x
  3. Step 3: Cross multiply
    73,300.20x = 109,950.30 × 72,004.20
  4. Step 4: Simplify right side
    73,300.20x = 7,916,883,391.26
  5. Step 5: Solve for x
    x = 7,916,883,391.26/73,300.20
  6. Step 6: Final answer
    x = 108,006.30

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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.