Home / 103,619.14-155,428.71-41,290.18

Finding the Fourth Proportional to 103,619.14, 155,428.71 and 41,290.18

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Solution

The fourth proportional to 103,619.14, 155,428.71 and 41,290.18 is: 61,935.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,619.14 : 155,428.71 = 41,290.18 : x
  2. Step 2: Convert to fraction form
    103,619.14/155,428.71 = 41,290.18/x
  3. Step 3: Cross multiply
    103,619.14x = 155,428.71 × 41,290.18
  4. Step 4: Simplify right side
    103,619.14x = 6,417,679,413.07
  5. Step 5: Solve for x
    x = 6,417,679,413.07/103,619.14
  6. Step 6: Final answer
    x = 61,935.27

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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.