Home / 132,568.18-182,940.40-72,137.43

Finding the Fourth Proportional to 132,568.18, 182,940.40 and 72,137.43

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Solution

The fourth proportional to 132,568.18, 182,940.40 and 72,137.43 is: 99,547.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,568.18 : 182,940.40 = 72,137.43 : x
  2. Step 2: Convert to fraction form
    132,568.18/182,940.40 = 72,137.43/x
  3. Step 3: Cross multiply
    132,568.18x = 182,940.40 × 72,137.43
  4. Step 4: Simplify right side
    132,568.18x = 13,196,850,299.17
  5. Step 5: Solve for x
    x = 13,196,850,299.17/132,568.18
  6. Step 6: Final answer
    x = 99,547.65

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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.