Home / 132,716.16-183,150.51-72,288

Finding the Fourth Proportional to 132,716.16, 183,150.51 and 72,288

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Solution

The fourth proportional to 132,716.16, 183,150.51 and 72,288 is: 99,758.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,716.16 : 183,150.51 = 72,288 : x
  2. Step 2: Convert to fraction form
    132,716.16/183,150.51 = 72,288/x
  3. Step 3: Cross multiply
    132,716.16x = 183,150.51 × 72,288
  4. Step 4: Simplify right side
    132,716.16x = 13,239,584,066.88
  5. Step 5: Solve for x
    x = 13,239,584,066.88/132,716.16
  6. Step 6: Final answer
    x = 99,758.64

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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.