Home / 115,738.18-173,606.02-87,829.68

Finding the Fourth Proportional to 115,738.18, 173,606.02 and 87,829.68

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Solution

The fourth proportional to 115,738.18, 173,606.02 and 87,829.68 is: 131,743.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,738.18 : 173,606.02 = 87,829.68 : x
  2. Step 2: Convert to fraction form
    115,738.18/173,606.02 = 87,829.68/x
  3. Step 3: Cross multiply
    115,738.18x = 173,606.02 × 87,829.68
  4. Step 4: Simplify right side
    115,738.18x = 15,247,761,182.67
  5. Step 5: Solve for x
    x = 15,247,761,182.67/115,738.18
  6. Step 6: Final answer
    x = 131,743.57

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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.