Home / 161,718.20-242,577.30-90,567.80

Finding the Fourth Proportional to 161,718.20, 242,577.30 and 90,567.80

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Solution

The fourth proportional to 161,718.20, 242,577.30 and 90,567.80 is: 135,851.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,718.20 : 242,577.30 = 90,567.80 : x
  2. Step 2: Convert to fraction form
    161,718.20/242,577.30 = 90,567.80/x
  3. Step 3: Cross multiply
    161,718.20x = 242,577.30 × 90,567.80
  4. Step 4: Simplify right side
    161,718.20x = 21,969,692,390.94
  5. Step 5: Solve for x
    x = 21,969,692,390.94/161,718.20
  6. Step 6: Final answer
    x = 135,851.70

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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.