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Finding the Fourth Proportional to 103,484.67, 155,186.91 and 40,295.76

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Solution

The fourth proportional to 103,484.67, 155,186.91 and 40,295.76 is: 60,428.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,484.67 : 155,186.91 = 40,295.76 : x
  2. Step 2: Convert to fraction form
    103,484.67/155,186.91 = 40,295.76/x
  3. Step 3: Cross multiply
    103,484.67x = 155,186.91 × 40,295.76
  4. Step 4: Simplify right side
    103,484.67x = 6,253,374,480.50
  5. Step 5: Solve for x
    x = 6,253,374,480.50/103,484.67
  6. Step 6: Final answer
    x = 60,428.03

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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.