Home / 217,729.95-326,633.19-99,413.25

Finding the Fourth Proportional to 217,729.95, 326,633.19 and 99,413.25

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Solution

The fourth proportional to 217,729.95, 326,633.19 and 99,413.25 is: 149,137.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,729.95 : 326,633.19 = 99,413.25 : x
  2. Step 2: Convert to fraction form
    217,729.95/326,633.19 = 99,413.25/x
  3. Step 3: Cross multiply
    217,729.95x = 326,633.19 × 99,413.25
  4. Step 4: Simplify right side
    217,729.95x = 32,471,666,975.77
  5. Step 5: Solve for x
    x = 32,471,666,975.77/217,729.95
  6. Step 6: Final answer
    x = 149,137.35

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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.