Home / 135,434.00-186,836.90-87,702.73

Finding the Fourth Proportional to 135,434.00, 186,836.90 and 87,702.73

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Solution

The fourth proportional to 135,434.00, 186,836.90 and 87,702.73 is: 120,989.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,434.00 : 186,836.90 = 87,702.73 : x
  2. Step 2: Convert to fraction form
    135,434.00/186,836.90 = 87,702.73/x
  3. Step 3: Cross multiply
    135,434.00x = 186,836.90 × 87,702.73
  4. Step 4: Simplify right side
    135,434.00x = 16,386,105,289.13
  5. Step 5: Solve for x
    x = 16,386,105,289.13/135,434.00
  6. Step 6: Final answer
    x = 120,989.60

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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.