Home / 128,248.41-176,982.44-71,659.83

Finding the Fourth Proportional to 128,248.41, 176,982.44 and 71,659.83

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Solution

The fourth proportional to 128,248.41, 176,982.44 and 71,659.83 is: 98,890.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,248.41 : 176,982.44 = 71,659.83 : x
  2. Step 2: Convert to fraction form
    128,248.41/176,982.44 = 71,659.83/x
  3. Step 3: Cross multiply
    128,248.41x = 176,982.44 × 71,659.83
  4. Step 4: Simplify right side
    128,248.41x = 12,682,531,205.09
  5. Step 5: Solve for x
    x = 12,682,531,205.09/128,248.41
  6. Step 6: Final answer
    x = 98,890.36

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1.5x scale

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.