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Finding the Fourth Proportional to 133,098.64, 183,632.02 and 87,799.12

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Solution

The fourth proportional to 133,098.64, 183,632.02 and 87,799.12 is: 121,133.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,098.64 : 183,632.02 = 87,799.12 : x
  2. Step 2: Convert to fraction form
    133,098.64/183,632.02 = 87,799.12/x
  3. Step 3: Cross multiply
    133,098.64x = 183,632.02 × 87,799.12
  4. Step 4: Simplify right side
    133,098.64x = 16,122,729,759.82
  5. Step 5: Solve for x
    x = 16,122,729,759.82/133,098.64
  6. Step 6: Final answer
    x = 121,133.69

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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.