Home / 158,277.25-218,413.99-86,643.43

Finding the Fourth Proportional to 158,277.25, 218,413.99 and 86,643.43

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Solution

The fourth proportional to 158,277.25, 218,413.99 and 86,643.43 is: 119,563.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,277.25 : 218,413.99 = 86,643.43 : x
  2. Step 2: Convert to fraction form
    158,277.25/218,413.99 = 86,643.43/x
  3. Step 3: Cross multiply
    158,277.25x = 218,413.99 × 86,643.43
  4. Step 4: Simplify right side
    158,277.25x = 18,924,137,253.59
  5. Step 5: Solve for x
    x = 18,924,137,253.59/158,277.25
  6. Step 6: Final answer
    x = 119,563.22

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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.