Home / 135,771.32-187,386.54-76,174.52

Finding the Fourth Proportional to 135,771.32, 187,386.54 and 76,174.52

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Solution

The fourth proportional to 135,771.32, 187,386.54 and 76,174.52 is: 105,133.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,771.32 : 187,386.54 = 76,174.52 : x
  2. Step 2: Convert to fraction form
    135,771.32/187,386.54 = 76,174.52/x
  3. Step 3: Cross multiply
    135,771.32x = 187,386.54 × 76,174.52
  4. Step 4: Simplify right side
    135,771.32x = 14,274,079,738.96
  5. Step 5: Solve for x
    x = 14,274,079,738.96/135,771.32
  6. Step 6: Final answer
    x = 105,133.25

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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.