Home / 147,639.06-203,735.52-83,976.30

Finding the Fourth Proportional to 147,639.06, 203,735.52 and 83,976.30

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Solution

The fourth proportional to 147,639.06, 203,735.52 and 83,976.30 is: 115,883.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,639.06 : 203,735.52 = 83,976.30 : x
  2. Step 2: Convert to fraction form
    147,639.06/203,735.52 = 83,976.30/x
  3. Step 3: Cross multiply
    147,639.06x = 203,735.52 × 83,976.30
  4. Step 4: Simplify right side
    147,639.06x = 17,108,955,148.18
  5. Step 5: Solve for x
    x = 17,108,955,148.18/147,639.06
  6. Step 6: Final answer
    x = 115,883.66

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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.