Home / 87,118.77-130,503.20-73,734.33

Finding the Fourth Proportional to 87,118.77, 130,503.20 and 73,734.33

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Solution

The fourth proportional to 87,118.77, 130,503.20 and 73,734.33 is: 110,453.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,118.77 : 130,503.20 = 73,734.33 : x
  2. Step 2: Convert to fraction form
    87,118.77/130,503.20 = 73,734.33/x
  3. Step 3: Cross multiply
    87,118.77x = 130,503.20 × 73,734.33
  4. Step 4: Simplify right side
    87,118.77x = 9,622,565,646.18
  5. Step 5: Solve for x
    x = 9,622,565,646.18/87,118.77
  6. Step 6: Final answer
    x = 110,453.41

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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.