Home / 106,736.83-147,364.75-66,509.70

Finding the Fourth Proportional to 106,736.83, 147,364.75 and 66,509.70

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Solution

The fourth proportional to 106,736.83, 147,364.75 and 66,509.70 is: 91,825.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,736.83 : 147,364.75 = 66,509.70 : x
  2. Step 2: Convert to fraction form
    106,736.83/147,364.75 = 66,509.70/x
  3. Step 3: Cross multiply
    106,736.83x = 147,364.75 × 66,509.70
  4. Step 4: Simplify right side
    106,736.83x = 9,801,185,313.08
  5. Step 5: Solve for x
    x = 9,801,185,313.08/106,736.83
  6. Step 6: Final answer
    x = 91,825.71

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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.