Home / 131,242.80-181,218.24-105,667.92

Finding the Fourth Proportional to 131,242.80, 181,218.24 and 105,667.92

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Solution

The fourth proportional to 131,242.80, 181,218.24 and 105,667.92 is: 145,904.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,242.80 : 181,218.24 = 105,667.92 : x
  2. Step 2: Convert to fraction form
    131,242.80/181,218.24 = 105,667.92/x
  3. Step 3: Cross multiply
    131,242.80x = 181,218.24 × 105,667.92
  4. Step 4: Simplify right side
    131,242.80x = 19,148,954,486.86
  5. Step 5: Solve for x
    x = 19,148,954,486.86/131,242.80
  6. Step 6: Final answer
    x = 145,904.80

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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.