Home / 100,830.45-151,171.47-34,252.68

Finding the Fourth Proportional to 100,830.45, 151,171.47 and 34,252.68

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Solution

The fourth proportional to 100,830.45, 151,171.47 and 34,252.68 is: 51,353.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,830.45 : 151,171.47 = 34,252.68 : x
  2. Step 2: Convert to fraction form
    100,830.45/151,171.47 = 34,252.68/x
  3. Step 3: Cross multiply
    100,830.45x = 151,171.47 × 34,252.68
  4. Step 4: Simplify right side
    100,830.45x = 5,178,027,987.04
  5. Step 5: Solve for x
    x = 5,178,027,987.04/100,830.45
  6. Step 6: Final answer
    x = 51,353.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.