Home / 148,121.64-204,402.78-84,479.94

Finding the Fourth Proportional to 148,121.64, 204,402.78 and 84,479.94

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Solution

The fourth proportional to 148,121.64, 204,402.78 and 84,479.94 is: 116,579.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,121.64 : 204,402.78 = 84,479.94 : x
  2. Step 2: Convert to fraction form
    148,121.64/204,402.78 = 84,479.94/x
  3. Step 3: Cross multiply
    148,121.64x = 204,402.78 × 84,479.94
  4. Step 4: Simplify right side
    148,121.64x = 17,267,934,590.23
  5. Step 5: Solve for x
    x = 17,267,934,590.23/148,121.64
  6. Step 6: Final answer
    x = 116,579.42

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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.