Home / 206,025.36-309,038.04-112,480.08

Finding the Fourth Proportional to 206,025.36, 309,038.04 and 112,480.08

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Solution

The fourth proportional to 206,025.36, 309,038.04 and 112,480.08 is: 168,720.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,025.36 : 309,038.04 = 112,480.08 : x
  2. Step 2: Convert to fraction form
    206,025.36/309,038.04 = 112,480.08/x
  3. Step 3: Cross multiply
    206,025.36x = 309,038.04 × 112,480.08
  4. Step 4: Simplify right side
    206,025.36x = 34,760,623,462.24
  5. Step 5: Solve for x
    x = 34,760,623,462.24/206,025.36
  6. Step 6: Final answer
    x = 168,720.12

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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.