Home / 161,985.94-223,539.92-90,366.03

Finding the Fourth Proportional to 161,985.94, 223,539.92 and 90,366.03

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Solution

The fourth proportional to 161,985.94, 223,539.92 and 90,366.03 is: 124,704.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,985.94 : 223,539.92 = 90,366.03 : x
  2. Step 2: Convert to fraction form
    161,985.94/223,539.92 = 90,366.03/x
  3. Step 3: Cross multiply
    161,985.94x = 223,539.92 × 90,366.03
  4. Step 4: Simplify right side
    161,985.94x = 20,200,415,003.96
  5. Step 5: Solve for x
    x = 20,200,415,003.96/161,985.94
  6. Step 6: Final answer
    x = 124,704.74

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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.