Home / 115,814.30-173,721.45-108,815.90

Finding the Fourth Proportional to 115,814.30, 173,721.45 and 108,815.90

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Solution

The fourth proportional to 115,814.30, 173,721.45 and 108,815.90 is: 163,223.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,814.30 : 173,721.45 = 108,815.90 : x
  2. Step 2: Convert to fraction form
    115,814.30/173,721.45 = 108,815.90/x
  3. Step 3: Cross multiply
    115,814.30x = 173,721.45 × 108,815.90
  4. Step 4: Simplify right side
    115,814.30x = 18,903,655,931.06
  5. Step 5: Solve for x
    x = 18,903,655,931.06/115,814.30
  6. Step 6: Final answer
    x = 163,223.85

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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.