Home / 161,116.09-241,678.89-76,885.20

Finding the Fourth Proportional to 161,116.09, 241,678.89 and 76,885.20

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Solution

The fourth proportional to 161,116.09, 241,678.89 and 76,885.20 is: 115,330.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,116.09 : 241,678.89 = 76,885.20 : x
  2. Step 2: Convert to fraction form
    161,116.09/241,678.89 = 76,885.20/x
  3. Step 3: Cross multiply
    161,116.09x = 241,678.89 × 76,885.20
  4. Step 4: Simplify right side
    161,116.09x = 18,581,529,793.43
  5. Step 5: Solve for x
    x = 18,581,529,793.43/161,116.09
  6. Step 6: Final answer
    x = 115,330.07

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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.