Home / 102,997.40-154,496.10-40,659.80

Finding the Fourth Proportional to 102,997.40, 154,496.10 and 40,659.80

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Solution

The fourth proportional to 102,997.40, 154,496.10 and 40,659.80 is: 60,989.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,997.40 : 154,496.10 = 40,659.80 : x
  2. Step 2: Convert to fraction form
    102,997.40/154,496.10 = 40,659.80/x
  3. Step 3: Cross multiply
    102,997.40x = 154,496.10 × 40,659.80
  4. Step 4: Simplify right side
    102,997.40x = 6,281,780,526.78
  5. Step 5: Solve for x
    x = 6,281,780,526.78/102,997.40
  6. Step 6: Final answer
    x = 60,989.70

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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.