Home / 128,162.77-175,580.08-123,370.95

Finding the Fourth Proportional to 128,162.77, 175,580.08 and 123,370.95

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Solution

The fourth proportional to 128,162.77, 175,580.08 and 123,370.95 is: 169,015.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,162.77 : 175,580.08 = 123,370.95 : x
  2. Step 2: Convert to fraction form
    128,162.77/175,580.08 = 123,370.95/x
  3. Step 3: Cross multiply
    128,162.77x = 175,580.08 × 123,370.95
  4. Step 4: Simplify right side
    128,162.77x = 21,661,479,775.92
  5. Step 5: Solve for x
    x = 21,661,479,775.92/128,162.77
  6. Step 6: Final answer
    x = 169,015.38

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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.