Home / 113,269.66-156,081.80-87,620.27

Finding the Fourth Proportional to 113,269.66, 156,081.80 and 87,620.27

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Solution

The fourth proportional to 113,269.66, 156,081.80 and 87,620.27 is: 120,737.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,269.66 : 156,081.80 = 87,620.27 : x
  2. Step 2: Convert to fraction form
    113,269.66/156,081.80 = 87,620.27/x
  3. Step 3: Cross multiply
    113,269.66x = 156,081.80 × 87,620.27
  4. Step 4: Simplify right side
    113,269.66x = 13,675,928,896.73
  5. Step 5: Solve for x
    x = 13,675,928,896.73/113,269.66
  6. Step 6: Final answer
    x = 120,737.80

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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.