Home / 103,413.90-155,085.93-39,356.84

Finding the Fourth Proportional to 103,413.90, 155,085.93 and 39,356.84

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Solution

The fourth proportional to 103,413.90, 155,085.93 and 39,356.84 is: 59,021.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,413.90 : 155,085.93 = 39,356.84 : x
  2. Step 2: Convert to fraction form
    103,413.90/155,085.93 = 39,356.84/x
  3. Step 3: Cross multiply
    103,413.90x = 155,085.93 × 39,356.84
  4. Step 4: Simplify right side
    103,413.90x = 6,103,692,133.26
  5. Step 5: Solve for x
    x = 6,103,692,133.26/103,413.90
  6. Step 6: Final answer
    x = 59,021.97

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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.