Home / 145,022.90-217,540.24-69,082.40

Finding the Fourth Proportional to 145,022.90, 217,540.24 and 69,082.40

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Solution

The fourth proportional to 145,022.90, 217,540.24 and 69,082.40 is: 103,626.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,022.90 : 217,540.24 = 69,082.40 : x
  2. Step 2: Convert to fraction form
    145,022.90/217,540.24 = 69,082.40/x
  3. Step 3: Cross multiply
    145,022.90x = 217,540.24 × 69,082.40
  4. Step 4: Simplify right side
    145,022.90x = 15,028,200,788.07
  5. Step 5: Solve for x
    x = 15,028,200,788.07/145,022.90
  6. Step 6: Final answer
    x = 103,626.40

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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.