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Finding the Fourth Proportional to 103,678.70, 155,478.99 and 33,539.18

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Solution

The fourth proportional to 103,678.70, 155,478.99 and 33,539.18 is: 50,296.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,678.70 : 155,478.99 = 33,539.18 : x
  2. Step 2: Convert to fraction form
    103,678.70/155,478.99 = 33,539.18/x
  3. Step 3: Cross multiply
    103,678.70x = 155,478.99 × 33,539.18
  4. Step 4: Simplify right side
    103,678.70x = 5,214,637,831.83
  5. Step 5: Solve for x
    x = 5,214,637,831.83/103,678.70
  6. Step 6: Final answer
    x = 50,296.13

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.