Home / 125,413.75-188,120.52-72,071.71

Finding the Fourth Proportional to 125,413.75, 188,120.52 and 72,071.71

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Solution

The fourth proportional to 125,413.75, 188,120.52 and 72,071.71 is: 108,107.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,413.75 : 188,120.52 = 72,071.71 : x
  2. Step 2: Convert to fraction form
    125,413.75/188,120.52 = 72,071.71/x
  3. Step 3: Cross multiply
    125,413.75x = 188,120.52 × 72,071.71
  4. Step 4: Simplify right side
    125,413.75x = 13,558,167,092.19
  5. Step 5: Solve for x
    x = 13,558,167,092.19/125,413.75
  6. Step 6: Final answer
    x = 108,107.50

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1.5x scale

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.