Home / 132,408.19-182,749.86-78,682.83

Finding the Fourth Proportional to 132,408.19, 182,749.86 and 78,682.83

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Solution

The fourth proportional to 132,408.19, 182,749.86 and 78,682.83 is: 108,598.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,408.19 : 182,749.86 = 78,682.83 : x
  2. Step 2: Convert to fraction form
    132,408.19/182,749.86 = 78,682.83/x
  3. Step 3: Cross multiply
    132,408.19x = 182,749.86 × 78,682.83
  4. Step 4: Simplify right side
    132,408.19x = 14,379,276,166.90
  5. Step 5: Solve for x
    x = 14,379,276,166.90/132,408.19
  6. Step 6: Final answer
    x = 108,598.09

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1.5x scale

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.