Home / 88,709.10-133,063.65-87,542.70

Finding the Fourth Proportional to 88,709.10, 133,063.65 and 87,542.70

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Solution

The fourth proportional to 88,709.10, 133,063.65 and 87,542.70 is: 131,314.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,709.10 : 133,063.65 = 87,542.70 : x
  2. Step 2: Convert to fraction form
    88,709.10/133,063.65 = 87,542.70/x
  3. Step 3: Cross multiply
    88,709.10x = 133,063.65 × 87,542.70
  4. Step 4: Simplify right side
    88,709.10x = 11,648,751,192.86
  5. Step 5: Solve for x
    x = 11,648,751,192.86/88,709.10
  6. Step 6: Final answer
    x = 131,314.05

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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.