Home / 243,868.46-365,919.32-86,171.18

Finding the Fourth Proportional to 243,868.46, 365,919.32 and 86,171.18

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Solution

The fourth proportional to 243,868.46, 365,919.32 and 86,171.18 is: 129,297.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,868.46 : 365,919.32 = 86,171.18 : x
  2. Step 2: Convert to fraction form
    243,868.46/365,919.32 = 86,171.18/x
  3. Step 3: Cross multiply
    243,868.46x = 365,919.32 × 86,171.18
  4. Step 4: Simplify right side
    243,868.46x = 31,531,697,975.03
  5. Step 5: Solve for x
    x = 31,531,697,975.03/243,868.46
  6. Step 6: Final answer
    x = 129,297.98

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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.