Home / 99,107.32-136,768.19-53,785.31

Finding the Fourth Proportional to 99,107.32, 136,768.19 and 53,785.31

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Solution

The fourth proportional to 99,107.32, 136,768.19 and 53,785.31 is: 74,223.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,107.32 : 136,768.19 = 53,785.31 : x
  2. Step 2: Convert to fraction form
    99,107.32/136,768.19 = 53,785.31/x
  3. Step 3: Cross multiply
    99,107.32x = 136,768.19 × 53,785.31
  4. Step 4: Simplify right side
    99,107.32x = 7,356,119,497.29
  5. Step 5: Solve for x
    x = 7,356,119,497.29/99,107.32
  6. Step 6: Final answer
    x = 74,223.78

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1.5x scale

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.