Home / 133,686.72-184,480.62-76,323.78

Finding the Fourth Proportional to 133,686.72, 184,480.62 and 76,323.78

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Solution

The fourth proportional to 133,686.72, 184,480.62 and 76,323.78 is: 105,322.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,686.72 : 184,480.62 = 76,323.78 : x
  2. Step 2: Convert to fraction form
    133,686.72/184,480.62 = 76,323.78/x
  3. Step 3: Cross multiply
    133,686.72x = 184,480.62 × 76,323.78
  4. Step 4: Simplify right side
    133,686.72x = 14,080,258,255.14
  5. Step 5: Solve for x
    x = 14,080,258,255.14/133,686.72
  6. Step 6: Final answer
    x = 105,322.79

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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.