Home / 109,678.20-164,517.30-97,212.30

Finding the Fourth Proportional to 109,678.20, 164,517.30 and 97,212.30

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Solution

The fourth proportional to 109,678.20, 164,517.30 and 97,212.30 is: 145,818.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,678.20 : 164,517.30 = 97,212.30 : x
  2. Step 2: Convert to fraction form
    109,678.20/164,517.30 = 97,212.30/x
  3. Step 3: Cross multiply
    109,678.20x = 164,517.30 × 97,212.30
  4. Step 4: Simplify right side
    109,678.20x = 15,993,105,122.79
  5. Step 5: Solve for x
    x = 15,993,105,122.79/109,678.20
  6. Step 6: Final answer
    x = 145,818.45

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1.5x scale

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.