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Finding the Fourth Proportional to 104,291.68, 155,095.79 and 100,970.18

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Solution

The fourth proportional to 104,291.68, 155,095.79 and 100,970.18 is: 150,156.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,291.68 : 155,095.79 = 100,970.18 : x
  2. Step 2: Convert to fraction form
    104,291.68/155,095.79 = 100,970.18/x
  3. Step 3: Cross multiply
    104,291.68x = 155,095.79 × 100,970.18
  4. Step 4: Simplify right side
    104,291.68x = 15,660,049,833.54
  5. Step 5: Solve for x
    x = 15,660,049,833.54/104,291.68
  6. Step 6: Final answer
    x = 150,156.27

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.