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Finding the Fourth Proportional to 104,812.20, 157,218.30 and 73,319.40

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Solution

The fourth proportional to 104,812.20, 157,218.30 and 73,319.40 is: 109,979.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,812.20 : 157,218.30 = 73,319.40 : x
  2. Step 2: Convert to fraction form
    104,812.20/157,218.30 = 73,319.40/x
  3. Step 3: Cross multiply
    104,812.20x = 157,218.30 × 73,319.40
  4. Step 4: Simplify right side
    104,812.20x = 11,527,151,425.02
  5. Step 5: Solve for x
    x = 11,527,151,425.02/104,812.20
  6. Step 6: Final answer
    x = 109,979.10

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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.