Home / 161,690.21-242,446.04-75,041.61

Finding the Fourth Proportional to 161,690.21, 242,446.04 and 75,041.61

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Solution

The fourth proportional to 161,690.21, 242,446.04 and 75,041.61 is: 112,520.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,690.21 : 242,446.04 = 75,041.61 : x
  2. Step 2: Convert to fraction form
    161,690.21/242,446.04 = 75,041.61/x
  3. Step 3: Cross multiply
    161,690.21x = 242,446.04 × 75,041.61
  4. Step 4: Simplify right side
    161,690.21x = 18,193,540,477.10
  5. Step 5: Solve for x
    x = 18,193,540,477.10/161,690.21
  6. Step 6: Final answer
    x = 112,520.98

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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.