Home / 103,985.49-155,961.09-37,413.21

Finding the Fourth Proportional to 103,985.49, 155,961.09 and 37,413.21

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Solution

The fourth proportional to 103,985.49, 155,961.09 and 37,413.21 is: 56,113.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,985.49 : 155,961.09 = 37,413.21 : x
  2. Step 2: Convert to fraction form
    103,985.49/155,961.09 = 37,413.21/x
  3. Step 3: Cross multiply
    103,985.49x = 155,961.09 × 37,413.21
  4. Step 4: Simplify right side
    103,985.49x = 5,835,005,012.00
  5. Step 5: Solve for x
    x = 5,835,005,012.00/103,985.49
  6. Step 6: Final answer
    x = 56,113.65

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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.