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Finding the Fourth Proportional to 188,043.65, 259,484.66 and 103,160.71

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Solution

The fourth proportional to 188,043.65, 259,484.66 and 103,160.71 is: 142,353.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,043.65 : 259,484.66 = 103,160.71 : x
  2. Step 2: Convert to fraction form
    188,043.65/259,484.66 = 103,160.71/x
  3. Step 3: Cross multiply
    188,043.65x = 259,484.66 × 103,160.71
  4. Step 4: Simplify right side
    188,043.65x = 26,768,620,462.29
  5. Step 5: Solve for x
    x = 26,768,620,462.29/188,043.65
  6. Step 6: Final answer
    x = 142,353.23

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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.