Home / 161,741.40-242,612.10-90,882.60

Finding the Fourth Proportional to 161,741.40, 242,612.10 and 90,882.60

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Solution

The fourth proportional to 161,741.40, 242,612.10 and 90,882.60 is: 136,323.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,741.40 : 242,612.10 = 90,882.60 : x
  2. Step 2: Convert to fraction form
    161,741.40/242,612.10 = 90,882.60/x
  3. Step 3: Cross multiply
    161,741.40x = 242,612.10 × 90,882.60
  4. Step 4: Simplify right side
    161,741.40x = 22,049,218,439.46
  5. Step 5: Solve for x
    x = 22,049,218,439.46/161,741.40
  6. Step 6: Final answer
    x = 136,323.90

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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.