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Finding the Fourth Proportional to 133,684.10, 200,526.15 and 103,940.90

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Solution

The fourth proportional to 133,684.10, 200,526.15 and 103,940.90 is: 155,911.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,684.10 : 200,526.15 = 103,940.90 : x
  2. Step 2: Convert to fraction form
    133,684.10/200,526.15 = 103,940.90/x
  3. Step 3: Cross multiply
    133,684.10x = 200,526.15 × 103,940.90
  4. Step 4: Simplify right side
    133,684.10x = 20,842,868,504.54
  5. Step 5: Solve for x
    x = 20,842,868,504.54/133,684.10
  6. Step 6: Final answer
    x = 155,911.35

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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.