Home / 135,986.04-203,683.68-65,718

Finding the Fourth Proportional to 135,986.04, 203,683.68 and 65,718

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Solution

The fourth proportional to 135,986.04, 203,683.68 and 65,718 is: 98,434.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,986.04 : 203,683.68 = 65,718 : x
  2. Step 2: Convert to fraction form
    135,986.04/203,683.68 = 65,718/x
  3. Step 3: Cross multiply
    135,986.04x = 203,683.68 × 65,718
  4. Step 4: Simplify right side
    135,986.04x = 13,385,684,082.24
  5. Step 5: Solve for x
    x = 13,385,684,082.24/135,986.04
  6. Step 6: Final answer
    x = 98,434.25

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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.