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Finding the Fourth Proportional to 86,267.94, 118,413.74 and 76,625.70

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Solution

The fourth proportional to 86,267.94, 118,413.74 and 76,625.70 is: 105,178.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,267.94 : 118,413.74 = 76,625.70 : x
  2. Step 2: Convert to fraction form
    86,267.94/118,413.74 = 76,625.70/x
  3. Step 3: Cross multiply
    86,267.94x = 118,413.74 × 76,625.70
  4. Step 4: Simplify right side
    86,267.94x = 9,073,535,717.12
  5. Step 5: Solve for x
    x = 9,073,535,717.12/86,267.94
  6. Step 6: Final answer
    x = 105,178.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.