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Finding the Fourth Proportional to 188,889.51, 260,669.24 and 104,009.61

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Solution

The fourth proportional to 188,889.51, 260,669.24 and 104,009.61 is: 143,534.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,889.51 : 260,669.24 = 104,009.61 : x
  2. Step 2: Convert to fraction form
    188,889.51/260,669.24 = 104,009.61/x
  3. Step 3: Cross multiply
    188,889.51x = 260,669.24 × 104,009.61
  4. Step 4: Simplify right side
    188,889.51x = 27,112,105,991.40
  5. Step 5: Solve for x
    x = 27,112,105,991.40/188,889.51
  6. Step 6: Final answer
    x = 143,534.21

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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.