Home / 112,413.14-155,202.45-72,144.26

Finding the Fourth Proportional to 112,413.14, 155,202.45 and 72,144.26

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Solution

The fourth proportional to 112,413.14, 155,202.45 and 72,144.26 is: 99,605.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,413.14 : 155,202.45 = 72,144.26 : x
  2. Step 2: Convert to fraction form
    112,413.14/155,202.45 = 72,144.26/x
  3. Step 3: Cross multiply
    112,413.14x = 155,202.45 × 72,144.26
  4. Step 4: Simplify right side
    112,413.14x = 11,196,965,905.44
  5. Step 5: Solve for x
    x = 11,196,965,905.44/112,413.14
  6. Step 6: Final answer
    x = 99,605.49

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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.