Home / 132,723.60-183,196.20-87,434.64

Finding the Fourth Proportional to 132,723.60, 183,196.20 and 87,434.64

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Solution

The fourth proportional to 132,723.60, 183,196.20 and 87,434.64 is: 120,684.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,723.60 : 183,196.20 = 87,434.64 : x
  2. Step 2: Convert to fraction form
    132,723.60/183,196.20 = 87,434.64/x
  3. Step 3: Cross multiply
    132,723.60x = 183,196.20 × 87,434.64
  4. Step 4: Simplify right side
    132,723.60x = 16,017,693,796.37
  5. Step 5: Solve for x
    x = 16,017,693,796.37/132,723.60
  6. Step 6: Final answer
    x = 120,684.59

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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.