Home / 132,521.37-182,879.35-72,091.88

Finding the Fourth Proportional to 132,521.37, 182,879.35 and 72,091.88

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Solution

The fourth proportional to 132,521.37, 182,879.35 and 72,091.88 is: 99,486.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,521.37 : 182,879.35 = 72,091.88 : x
  2. Step 2: Convert to fraction form
    132,521.37/182,879.35 = 72,091.88/x
  3. Step 3: Cross multiply
    132,521.37x = 182,879.35 × 72,091.88
  4. Step 4: Simplify right side
    132,521.37x = 13,184,115,745.85
  5. Step 5: Solve for x
    x = 13,184,115,745.85/132,521.37
  6. Step 6: Final answer
    x = 99,486.72

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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.