Home / 112,569.28-155,297.45-64,812.49

Finding the Fourth Proportional to 112,569.28, 155,297.45 and 64,812.49

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Solution

The fourth proportional to 112,569.28, 155,297.45 and 64,812.49 is: 89,413.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,569.28 : 155,297.45 = 64,812.49 : x
  2. Step 2: Convert to fraction form
    112,569.28/155,297.45 = 64,812.49/x
  3. Step 3: Cross multiply
    112,569.28x = 155,297.45 × 64,812.49
  4. Step 4: Simplify right side
    112,569.28x = 10,065,214,198.94
  5. Step 5: Solve for x
    x = 10,065,214,198.94/112,569.28
  6. Step 6: Final answer
    x = 89,413.51

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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.