Home / 106,413.20-159,619.80-64,941.20

Finding the Fourth Proportional to 106,413.20, 159,619.80 and 64,941.20

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Solution

The fourth proportional to 106,413.20, 159,619.80 and 64,941.20 is: 97,411.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,413.20 : 159,619.80 = 64,941.20 : x
  2. Step 2: Convert to fraction form
    106,413.20/159,619.80 = 64,941.20/x
  3. Step 3: Cross multiply
    106,413.20x = 159,619.80 × 64,941.20
  4. Step 4: Simplify right side
    106,413.20x = 10,365,901,355.76
  5. Step 5: Solve for x
    x = 10,365,901,355.76/106,413.20
  6. Step 6: Final answer
    x = 97,411.80

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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.