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Finding the Fourth Proportional to 181,919.74, 251,048.61 and 101,342.50

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Solution

The fourth proportional to 181,919.74, 251,048.61 and 101,342.50 is: 139,852.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,919.74 : 251,048.61 = 101,342.50 : x
  2. Step 2: Convert to fraction form
    181,919.74/251,048.61 = 101,342.50/x
  3. Step 3: Cross multiply
    181,919.74x = 251,048.61 × 101,342.50
  4. Step 4: Simplify right side
    181,919.74x = 25,441,893,758.93
  5. Step 5: Solve for x
    x = 25,441,893,758.93/181,919.74
  6. Step 6: Final answer
    x = 139,852.30

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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.