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Finding the Fourth Proportional to 133,749.70, 200,332.95 and 110,421.70

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Solution

The fourth proportional to 133,749.70, 200,332.95 and 110,421.70 is: 165,391.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,749.70 : 200,332.95 = 110,421.70 : x
  2. Step 2: Convert to fraction form
    133,749.70/200,332.95 = 110,421.70/x
  3. Step 3: Cross multiply
    133,749.70x = 200,332.95 × 110,421.70
  4. Step 4: Simplify right side
    133,749.70x = 22,121,104,905.02
  5. Step 5: Solve for x
    x = 22,121,104,905.02/133,749.70
  6. Step 6: Final answer
    x = 165,391.81

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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.