Home / 86,192.52-118,949.54-71,828.32

Finding the Fourth Proportional to 86,192.52, 118,949.54 and 71,828.32

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Solution

The fourth proportional to 86,192.52, 118,949.54 and 71,828.32 is: 99,126.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,192.52 : 118,949.54 = 71,828.32 : x
  2. Step 2: Convert to fraction form
    86,192.52/118,949.54 = 71,828.32/x
  3. Step 3: Cross multiply
    86,192.52x = 118,949.54 × 71,828.32
  4. Step 4: Simplify right side
    86,192.52x = 8,543,945,622.97
  5. Step 5: Solve for x
    x = 8,543,945,622.97/86,192.52
  6. Step 6: Final answer
    x = 99,126.30

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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.