Home / 128,166.03-175,584.52-123,374.19

Finding the Fourth Proportional to 128,166.03, 175,584.52 and 123,374.19

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Solution

The fourth proportional to 128,166.03, 175,584.52 and 123,374.19 is: 169,019.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,166.03 : 175,584.52 = 123,374.19 : x
  2. Step 2: Convert to fraction form
    128,166.03/175,584.52 = 123,374.19/x
  3. Step 3: Cross multiply
    128,166.03x = 175,584.52 × 123,374.19
  4. Step 4: Simplify right side
    128,166.03x = 21,662,597,623.10
  5. Step 5: Solve for x
    x = 21,662,597,623.10/128,166.03
  6. Step 6: Final answer
    x = 169,019.81

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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.