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Finding the Fourth Proportional to 73,403.80, 110,105.70 and 72,237.40

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Solution

The fourth proportional to 73,403.80, 110,105.70 and 72,237.40 is: 108,356.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,403.80 : 110,105.70 = 72,237.40 : x
  2. Step 2: Convert to fraction form
    73,403.80/110,105.70 = 72,237.40/x
  3. Step 3: Cross multiply
    73,403.80x = 110,105.70 × 72,237.40
  4. Step 4: Simplify right side
    73,403.80x = 7,953,749,493.18
  5. Step 5: Solve for x
    x = 7,953,749,493.18/73,403.80
  6. Step 6: Final answer
    x = 108,356.10

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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.