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Finding the Fourth Proportional to 73,398.80, 110,098.20 and 72,707.60

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Solution

The fourth proportional to 73,398.80, 110,098.20 and 72,707.60 is: 109,061.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,398.80 : 110,098.20 = 72,707.60 : x
  2. Step 2: Convert to fraction form
    73,398.80/110,098.20 = 72,707.60/x
  3. Step 3: Cross multiply
    73,398.80x = 110,098.20 × 72,707.60
  4. Step 4: Simplify right side
    73,398.80x = 8,004,975,886.32
  5. Step 5: Solve for x
    x = 8,004,975,886.32/73,398.80
  6. Step 6: Final answer
    x = 109,061.40

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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.