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Finding the Fourth Proportional to 188,644.34, 260,327.95 and 106,988.14

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Solution

The fourth proportional to 188,644.34, 260,327.95 and 106,988.14 is: 147,642.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,644.34 : 260,327.95 = 106,988.14 : x
  2. Step 2: Convert to fraction form
    188,644.34/260,327.95 = 106,988.14/x
  3. Step 3: Cross multiply
    188,644.34x = 260,327.95 × 106,988.14
  4. Step 4: Simplify right side
    188,644.34x = 27,852,003,160.51
  5. Step 5: Solve for x
    x = 27,852,003,160.51/188,644.34
  6. Step 6: Final answer
    x = 147,642.93

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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.