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Finding the Fourth Proportional to 188,529.68, 260,177.64 and 103,653.20

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Solution

The fourth proportional to 188,529.68, 260,177.64 and 103,653.20 is: 143,045.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,529.68 : 260,177.64 = 103,653.20 : x
  2. Step 2: Convert to fraction form
    188,529.68/260,177.64 = 103,653.20/x
  3. Step 3: Cross multiply
    188,529.68x = 260,177.64 × 103,653.20
  4. Step 4: Simplify right side
    188,529.68x = 26,968,244,954.45
  5. Step 5: Solve for x
    x = 26,968,244,954.45/188,529.68
  6. Step 6: Final answer
    x = 143,045.09

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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.