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Finding the Fourth Proportional to 133,191.70, 183,801.54 and 72,762.64

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Solution

The fourth proportional to 133,191.70, 183,801.54 and 72,762.64 is: 100,410.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,191.70 : 183,801.54 = 72,762.64 : x
  2. Step 2: Convert to fraction form
    133,191.70/183,801.54 = 72,762.64/x
  3. Step 3: Cross multiply
    133,191.70x = 183,801.54 × 72,762.64
  4. Step 4: Simplify right side
    133,191.70x = 13,373,885,286.47
  5. Step 5: Solve for x
    x = 13,373,885,286.47/133,191.70
  6. Step 6: Final answer
    x = 100,410.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.