Home / 161,521.92-242,231.13-53,431.20

Finding the Fourth Proportional to 161,521.92, 242,231.13 and 53,431.20

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Solution

The fourth proportional to 161,521.92, 242,231.13 and 53,431.20 is: 80,129.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,521.92 : 242,231.13 = 53,431.20 : x
  2. Step 2: Convert to fraction form
    161,521.92/242,231.13 = 53,431.20/x
  3. Step 3: Cross multiply
    161,521.92x = 242,231.13 × 53,431.20
  4. Step 4: Simplify right side
    161,521.92x = 12,942,699,953.26
  5. Step 5: Solve for x
    x = 12,942,699,953.26/161,521.92
  6. Step 6: Final answer
    x = 80,129.68

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1.5x scale

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.