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Finding the Fourth Proportional to 103,677.94, 155,475.06 and 40,489.03

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Solution

The fourth proportional to 103,677.94, 155,475.06 and 40,489.03 is: 60,717.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,677.94 : 155,475.06 = 40,489.03 : x
  2. Step 2: Convert to fraction form
    103,677.94/155,475.06 = 40,489.03/x
  3. Step 3: Cross multiply
    103,677.94x = 155,475.06 × 40,489.03
  4. Step 4: Simplify right side
    103,677.94x = 6,295,034,368.59
  5. Step 5: Solve for x
    x = 6,295,034,368.59/103,677.94
  6. Step 6: Final answer
    x = 60,717.20

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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.