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Finding the Fourth Proportional to 133,501.20, 199,960.20 and 103,685.10

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Solution

The fourth proportional to 133,501.20, 199,960.20 and 103,685.10 is: 155,301.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,501.20 : 199,960.20 = 103,685.10 : x
  2. Step 2: Convert to fraction form
    133,501.20/199,960.20 = 103,685.10/x
  3. Step 3: Cross multiply
    133,501.20x = 199,960.20 × 103,685.10
  4. Step 4: Simplify right side
    133,501.20x = 20,732,893,333.02
  5. Step 5: Solve for x
    x = 20,732,893,333.02/133,501.20
  6. Step 6: Final answer
    x = 155,301.18

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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.