Home / 150,413.10-207,515.16-89,985.48

Finding the Fourth Proportional to 150,413.10, 207,515.16 and 89,985.48

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Solution

The fourth proportional to 150,413.10, 207,515.16 and 89,985.48 is: 124,147.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,413.10 : 207,515.16 = 89,985.48 : x
  2. Step 2: Convert to fraction form
    150,413.10/207,515.16 = 89,985.48/x
  3. Step 3: Cross multiply
    150,413.10x = 207,515.16 × 89,985.48
  4. Step 4: Simplify right side
    150,413.10x = 18,673,351,279.88
  5. Step 5: Solve for x
    x = 18,673,351,279.88/150,413.10
  6. Step 6: Final answer
    x = 124,147.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.