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Finding the Fourth Proportional to 101,090, 151,628.76 and 30,963.92

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Solution

The fourth proportional to 101,090, 151,628.76 and 30,963.92 is: 46,443.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,090 : 151,628.76 = 30,963.92 : x
  2. Step 2: Convert to fraction form
    101,090/151,628.76 = 30,963.92/x
  3. Step 3: Cross multiply
    101,090x = 151,628.76 × 30,963.92
  4. Step 4: Simplify right side
    101,090x = 4,695,020,794.34
  5. Step 5: Solve for x
    x = 4,695,020,794.34/101,090
  6. Step 6: Final answer
    x = 46,443.97

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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.