Home / 134,190.72-185,192.87-80,474.76

Finding the Fourth Proportional to 134,190.72, 185,192.87 and 80,474.76

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Solution

The fourth proportional to 134,190.72, 185,192.87 and 80,474.76 is: 111,060.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,190.72 : 185,192.87 = 80,474.76 : x
  2. Step 2: Convert to fraction form
    134,190.72/185,192.87 = 80,474.76/x
  3. Step 3: Cross multiply
    134,190.72x = 185,192.87 × 80,474.76
  4. Step 4: Simplify right side
    134,190.72x = 14,903,351,364.59
  5. Step 5: Solve for x
    x = 14,903,351,364.59/134,190.72
  6. Step 6: Final answer
    x = 111,060.97

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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.