Home / 132,935.60-183,405.20-85,215.20

Finding the Fourth Proportional to 132,935.60, 183,405.20 and 85,215.20

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Solution

The fourth proportional to 132,935.60, 183,405.20 and 85,215.20 is: 117,567.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,935.60 : 183,405.20 = 85,215.20 : x
  2. Step 2: Convert to fraction form
    132,935.60/183,405.20 = 85,215.20/x
  3. Step 3: Cross multiply
    132,935.60x = 183,405.20 × 85,215.20
  4. Step 4: Simplify right side
    132,935.60x = 15,628,910,799.04
  5. Step 5: Solve for x
    x = 15,628,910,799.04/132,935.60
  6. Step 6: Final answer
    x = 117,567.53

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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.