Home / 161,720.76-223,173.18-90,099.48

Finding the Fourth Proportional to 161,720.76, 223,173.18 and 90,099.48

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Solution

The fourth proportional to 161,720.76, 223,173.18 and 90,099.48 is: 124,336.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,720.76 : 223,173.18 = 90,099.48 : x
  2. Step 2: Convert to fraction form
    161,720.76/223,173.18 = 90,099.48/x
  3. Step 3: Cross multiply
    161,720.76x = 223,173.18 × 90,099.48
  4. Step 4: Simplify right side
    161,720.76x = 20,107,787,467.95
  5. Step 5: Solve for x
    x = 20,107,787,467.95/161,720.76
  6. Step 6: Final answer
    x = 124,336.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.