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Finding the Fourth Proportional to 188,038.91, 259,500.44 and 103,158.47

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Solution

The fourth proportional to 188,038.91, 259,500.44 and 103,158.47 is: 142,362.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,038.91 : 259,500.44 = 103,158.47 : x
  2. Step 2: Convert to fraction form
    188,038.91/259,500.44 = 103,158.47/x
  3. Step 3: Cross multiply
    188,038.91x = 259,500.44 × 103,158.47
  4. Step 4: Simplify right side
    188,038.91x = 26,769,668,354.73
  5. Step 5: Solve for x
    x = 26,769,668,354.73/188,038.91
  6. Step 6: Final answer
    x = 142,362.39

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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.