Home / 161,121.96-241,624.62-76,878.72

Finding the Fourth Proportional to 161,121.96, 241,624.62 and 76,878.72

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Solution

The fourth proportional to 161,121.96, 241,624.62 and 76,878.72 is: 115,290.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,121.96 : 241,624.62 = 76,878.72 : x
  2. Step 2: Convert to fraction form
    161,121.96/241,624.62 = 76,878.72/x
  3. Step 3: Cross multiply
    161,121.96x = 241,624.62 × 76,878.72
  4. Step 4: Simplify right side
    161,121.96x = 18,575,791,506.09
  5. Step 5: Solve for x
    x = 18,575,791,506.09/161,121.96
  6. Step 6: Final answer
    x = 115,290.25

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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.