Home / 132,890.09-199,360.78-42,957

Finding the Fourth Proportional to 132,890.09, 199,360.78 and 42,957

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Solution

The fourth proportional to 132,890.09, 199,360.78 and 42,957 is: 64,443.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,890.09 : 199,360.78 = 42,957 : x
  2. Step 2: Convert to fraction form
    132,890.09/199,360.78 = 42,957/x
  3. Step 3: Cross multiply
    132,890.09x = 199,360.78 × 42,957
  4. Step 4: Simplify right side
    132,890.09x = 8,563,940,919.07
  5. Step 5: Solve for x
    x = 8,563,940,919.07/132,890.09
  6. Step 6: Final answer
    x = 64,443.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.