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Finding the Fourth Proportional to 133,605.40, 200,465.70 and 67,941.40

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Solution

The fourth proportional to 133,605.40, 200,465.70 and 67,941.40 is: 101,941.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,605.40 : 200,465.70 = 67,941.40 : x
  2. Step 2: Convert to fraction form
    133,605.40/200,465.70 = 67,941.40/x
  3. Step 3: Cross multiply
    133,605.40x = 200,465.70 × 67,941.40
  4. Step 4: Simplify right side
    133,605.40x = 13,619,920,309.98
  5. Step 5: Solve for x
    x = 13,619,920,309.98/133,605.40
  6. Step 6: Final answer
    x = 101,941.39

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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.