Home / 87,106.77-130,485.18-73,722.33

Finding the Fourth Proportional to 87,106.77, 130,485.18 and 73,722.33

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Solution

The fourth proportional to 87,106.77, 130,485.18 and 73,722.33 is: 110,435.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,106.77 : 130,485.18 = 73,722.33 : x
  2. Step 2: Convert to fraction form
    87,106.77/130,485.18 = 73,722.33/x
  3. Step 3: Cross multiply
    87,106.77x = 130,485.18 × 73,722.33
  4. Step 4: Simplify right side
    87,106.77x = 9,619,671,500.07
  5. Step 5: Solve for x
    x = 9,619,671,500.07/87,106.77
  6. Step 6: Final answer
    x = 110,435.41

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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.