Home / 109,155.39-150,633.84-61,409.04

Finding the Fourth Proportional to 109,155.39, 150,633.84 and 61,409.04

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Solution

The fourth proportional to 109,155.39, 150,633.84 and 61,409.04 is: 84,744.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,155.39 : 150,633.84 = 61,409.04 : x
  2. Step 2: Convert to fraction form
    109,155.39/150,633.84 = 61,409.04/x
  3. Step 3: Cross multiply
    109,155.39x = 150,633.84 × 61,409.04
  4. Step 4: Simplify right side
    109,155.39x = 9,250,279,505.91
  5. Step 5: Solve for x
    x = 9,250,279,505.91/109,155.39
  6. Step 6: Final answer
    x = 84,744.14

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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.