Home / 112,811.08-155,695.62-65,054.92

Finding the Fourth Proportional to 112,811.08, 155,695.62 and 65,054.92

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Solution

The fourth proportional to 112,811.08, 155,695.62 and 65,054.92 is: 89,785.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,811.08 : 155,695.62 = 65,054.92 : x
  2. Step 2: Convert to fraction form
    112,811.08/155,695.62 = 65,054.92/x
  3. Step 3: Cross multiply
    112,811.08x = 155,695.62 × 65,054.92
  4. Step 4: Simplify right side
    112,811.08x = 10,128,766,103.45
  5. Step 5: Solve for x
    x = 10,128,766,103.45/112,811.08
  6. Step 6: Final answer
    x = 89,785.21

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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.