Home / 112,775.06-168,695.07-85,917.83

Finding the Fourth Proportional to 112,775.06, 168,695.07 and 85,917.83

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Solution

The fourth proportional to 112,775.06, 168,695.07 and 85,917.83 is: 128,520.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,775.06 : 168,695.07 = 85,917.83 : x
  2. Step 2: Convert to fraction form
    112,775.06/168,695.07 = 85,917.83/x
  3. Step 3: Cross multiply
    112,775.06x = 168,695.07 × 85,917.83
  4. Step 4: Simplify right side
    112,775.06x = 14,493,913,502.62
  5. Step 5: Solve for x
    x = 14,493,913,502.62/112,775.06
  6. Step 6: Final answer
    x = 128,520.56

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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.