Home / 150,413.35-207,515.50-89,985.73

Finding the Fourth Proportional to 150,413.35, 207,515.50 and 89,985.73

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Solution

The fourth proportional to 150,413.35, 207,515.50 and 89,985.73 is: 124,147.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,413.35 : 207,515.50 = 89,985.73 : x
  2. Step 2: Convert to fraction form
    150,413.35/207,515.50 = 89,985.73/x
  3. Step 3: Cross multiply
    150,413.35x = 207,515.50 × 89,985.73
  4. Step 4: Simplify right side
    150,413.35x = 18,673,433,753.82
  5. Step 5: Solve for x
    x = 18,673,433,753.82/150,413.35
  6. Step 6: Final answer
    x = 124,147.45

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1.5x scale

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.