Home / 134,660.22-185,868.72-78,060.66

Finding the Fourth Proportional to 134,660.22, 185,868.72 and 78,060.66

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Solution

The fourth proportional to 134,660.22, 185,868.72 and 78,060.66 is: 107,745.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,660.22 : 185,868.72 = 78,060.66 : x
  2. Step 2: Convert to fraction form
    134,660.22/185,868.72 = 78,060.66/x
  3. Step 3: Cross multiply
    134,660.22x = 185,868.72 × 78,060.66
  4. Step 4: Simplify right side
    134,660.22x = 14,509,034,956.56
  5. Step 5: Solve for x
    x = 14,509,034,956.56/134,660.22
  6. Step 6: Final answer
    x = 107,745.52

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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.