Home / 158,996.08-219,413.72-86,398.32

Finding the Fourth Proportional to 158,996.08, 219,413.72 and 86,398.32

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Solution

The fourth proportional to 158,996.08, 219,413.72 and 86,398.32 is: 119,229.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,996.08 : 219,413.72 = 86,398.32 : x
  2. Step 2: Convert to fraction form
    158,996.08/219,413.72 = 86,398.32/x
  3. Step 3: Cross multiply
    158,996.08x = 219,413.72 × 86,398.32
  4. Step 4: Simplify right side
    158,996.08x = 18,956,976,792.95
  5. Step 5: Solve for x
    x = 18,956,976,792.95/158,996.08
  6. Step 6: Final answer
    x = 119,229.21

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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.