Home / 88,037.70-131,854.05-72,291.30

Finding the Fourth Proportional to 88,037.70, 131,854.05 and 72,291.30

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Solution

The fourth proportional to 88,037.70, 131,854.05 and 72,291.30 is: 108,270.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,037.70 : 131,854.05 = 72,291.30 : x
  2. Step 2: Convert to fraction form
    88,037.70/131,854.05 = 72,291.30/x
  3. Step 3: Cross multiply
    88,037.70x = 131,854.05 × 72,291.30
  4. Step 4: Simplify right side
    88,037.70x = 9,531,900,684.77
  5. Step 5: Solve for x
    x = 9,531,900,684.77/88,037.70
  6. Step 6: Final answer
    x = 108,270.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.