Home / 128,163.93-175,581.66-123,372.10

Finding the Fourth Proportional to 128,163.93, 175,581.66 and 123,372.10

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Solution

The fourth proportional to 128,163.93, 175,581.66 and 123,372.10 is: 169,016.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,163.93 : 175,581.66 = 123,372.10 : x
  2. Step 2: Convert to fraction form
    128,163.93/175,581.66 = 123,372.10/x
  3. Step 3: Cross multiply
    128,163.93x = 175,581.66 × 123,372.10
  4. Step 4: Simplify right side
    128,163.93x = 21,661,877,807.26
  5. Step 5: Solve for x
    x = 21,661,877,807.26/128,163.93
  6. Step 6: Final answer
    x = 169,016.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.