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Finding the Fourth Proportional to 102,741.69, 154,114.35 and 39,555.61

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Solution

The fourth proportional to 102,741.69, 154,114.35 and 39,555.61 is: 59,334.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,741.69 : 154,114.35 = 39,555.61 : x
  2. Step 2: Convert to fraction form
    102,741.69/154,114.35 = 39,555.61/x
  3. Step 3: Cross multiply
    102,741.69x = 154,114.35 × 39,555.61
  4. Step 4: Simplify right side
    102,741.69x = 6,096,087,124.00
  5. Step 5: Solve for x
    x = 6,096,087,124.00/102,741.69
  6. Step 6: Final answer
    x = 59,334.11

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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.