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Finding the Fourth Proportional to 100,900.73, 151,315.65 and 29,804.40

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Solution

The fourth proportional to 100,900.73, 151,315.65 and 29,804.40 is: 44,696.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,900.73 : 151,315.65 = 29,804.40 : x
  2. Step 2: Convert to fraction form
    100,900.73/151,315.65 = 29,804.40/x
  3. Step 3: Cross multiply
    100,900.73x = 151,315.65 × 29,804.40
  4. Step 4: Simplify right side
    100,900.73x = 4,509,872,158.86
  5. Step 5: Solve for x
    x = 4,509,872,158.86/100,900.73
  6. Step 6: Final answer
    x = 44,696.13

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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.