Home / 209,581.45-289,223.75-114,088.12

Finding the Fourth Proportional to 209,581.45, 289,223.75 and 114,088.12

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Solution

The fourth proportional to 209,581.45, 289,223.75 and 114,088.12 is: 157,442.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,581.45 : 289,223.75 = 114,088.12 : x
  2. Step 2: Convert to fraction form
    209,581.45/289,223.75 = 114,088.12/x
  3. Step 3: Cross multiply
    209,581.45x = 289,223.75 × 114,088.12
  4. Step 4: Simplify right side
    209,581.45x = 32,996,993,896.85
  5. Step 5: Solve for x
    x = 32,996,993,896.85/209,581.45
  6. Step 6: Final answer
    x = 157,442.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.