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Finding the Fourth Proportional to 133,132.68, 183,678.84 and 87,833.16

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Solution

The fourth proportional to 133,132.68, 183,678.84 and 87,833.16 is: 121,180.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,132.68 : 183,678.84 = 87,833.16 : x
  2. Step 2: Convert to fraction form
    133,132.68/183,678.84 = 87,833.16/x
  3. Step 3: Cross multiply
    133,132.68x = 183,678.84 × 87,833.16
  4. Step 4: Simplify right side
    133,132.68x = 16,133,092,942.33
  5. Step 5: Solve for x
    x = 16,133,092,942.33/133,132.68
  6. Step 6: Final answer
    x = 121,180.56

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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.