Home / 109,315.93-163,603.24-67,222.46

Finding the Fourth Proportional to 109,315.93, 163,603.24 and 67,222.46

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Solution

The fourth proportional to 109,315.93, 163,603.24 and 67,222.46 is: 100,605.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,315.93 : 163,603.24 = 67,222.46 : x
  2. Step 2: Convert to fraction form
    109,315.93/163,603.24 = 67,222.46/x
  3. Step 3: Cross multiply
    109,315.93x = 163,603.24 × 67,222.46
  4. Step 4: Simplify right side
    109,315.93x = 10,997,811,955.58
  5. Step 5: Solve for x
    x = 10,997,811,955.58/109,315.93
  6. Step 6: Final answer
    x = 100,605.76

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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.