Home / 128,923.13-193,433.90-50,043.51

Finding the Fourth Proportional to 128,923.13, 193,433.90 and 50,043.51

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Solution

The fourth proportional to 128,923.13, 193,433.90 and 50,043.51 is: 75,084.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,923.13 : 193,433.90 = 50,043.51 : x
  2. Step 2: Convert to fraction form
    128,923.13/193,433.90 = 50,043.51/x
  3. Step 3: Cross multiply
    128,923.13x = 193,433.90 × 50,043.51
  4. Step 4: Simplify right side
    128,923.13x = 9,680,111,058.77
  5. Step 5: Solve for x
    x = 9,680,111,058.77/128,923.13
  6. Step 6: Final answer
    x = 75,084.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.