Home / 136,431.54-204,269.94-69,728.04

Finding the Fourth Proportional to 136,431.54, 204,269.94 and 69,728.04

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Solution

The fourth proportional to 136,431.54, 204,269.94 and 69,728.04 is: 104,399.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,431.54 : 204,269.94 = 69,728.04 : x
  2. Step 2: Convert to fraction form
    136,431.54/204,269.94 = 69,728.04/x
  3. Step 3: Cross multiply
    136,431.54x = 204,269.94 × 69,728.04
  4. Step 4: Simplify right side
    136,431.54x = 14,243,342,547.12
  5. Step 5: Solve for x
    x = 14,243,342,547.12/136,431.54
  6. Step 6: Final answer
    x = 104,399.19

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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.