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Finding the Fourth Proportional to 101,172.65, 151,730.21 and 30,092.38

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Solution

The fourth proportional to 101,172.65, 151,730.21 and 30,092.38 is: 45,130.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,172.65 : 151,730.21 = 30,092.38 : x
  2. Step 2: Convert to fraction form
    101,172.65/151,730.21 = 30,092.38/x
  3. Step 3: Cross multiply
    101,172.65x = 151,730.21 × 30,092.38
  4. Step 4: Simplify right side
    101,172.65x = 4,565,922,832.71
  5. Step 5: Solve for x
    x = 4,565,922,832.71/101,172.65
  6. Step 6: Final answer
    x = 45,130.01

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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.