Home / 201,429.90-302,082.98-66,469.05

Finding the Fourth Proportional to 201,429.90, 302,082.98 and 66,469.05

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Solution

The fourth proportional to 201,429.90, 302,082.98 and 66,469.05 is: 99,683.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,429.90 : 302,082.98 = 66,469.05 : x
  2. Step 2: Convert to fraction form
    201,429.90/302,082.98 = 66,469.05/x
  3. Step 3: Cross multiply
    201,429.90x = 302,082.98 × 66,469.05
  4. Step 4: Simplify right side
    201,429.90x = 20,079,168,369.42
  5. Step 5: Solve for x
    x = 20,079,168,369.42/201,429.90
  6. Step 6: Final answer
    x = 99,683.16

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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.