Home / 109,271.75-163,936.79-39,158.15

Finding the Fourth Proportional to 109,271.75, 163,936.79 and 39,158.15

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Solution

The fourth proportional to 109,271.75, 163,936.79 and 39,158.15 is: 58,747.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,271.75 : 163,936.79 = 39,158.15 : x
  2. Step 2: Convert to fraction form
    109,271.75/163,936.79 = 39,158.15/x
  3. Step 3: Cross multiply
    109,271.75x = 163,936.79 × 39,158.15
  4. Step 4: Simplify right side
    109,271.75x = 6,419,460,397.86
  5. Step 5: Solve for x
    x = 6,419,460,397.86/109,271.75
  6. Step 6: Final answer
    x = 58,747.67

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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.