Home / 134,464.82-201,632.90-78,320.95

Finding the Fourth Proportional to 134,464.82, 201,632.90 and 78,320.95

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Solution

The fourth proportional to 134,464.82, 201,632.90 and 78,320.95 is: 117,443.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,464.82 : 201,632.90 = 78,320.95 : x
  2. Step 2: Convert to fraction form
    134,464.82/201,632.90 = 78,320.95/x
  3. Step 3: Cross multiply
    134,464.82x = 201,632.90 × 78,320.95
  4. Step 4: Simplify right side
    134,464.82x = 15,792,079,383.57
  5. Step 5: Solve for x
    x = 15,792,079,383.57/134,464.82
  6. Step 6: Final answer
    x = 117,443.95

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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.