Home / 132,356-182,651.28-72,741.28

Finding the Fourth Proportional to 132,356, 182,651.28 and 72,741.28

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Solution

The fourth proportional to 132,356, 182,651.28 and 72,741.28 is: 100,382.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,356 : 182,651.28 = 72,741.28 : x
  2. Step 2: Convert to fraction form
    132,356/182,651.28 = 72,741.28/x
  3. Step 3: Cross multiply
    132,356x = 182,651.28 × 72,741.28
  4. Step 4: Simplify right side
    132,356x = 13,286,287,900.84
  5. Step 5: Solve for x
    x = 13,286,287,900.84/132,356
  6. Step 6: Final answer
    x = 100,382.97

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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.