Home / 102,984.40-154,217.40-67,733.20

Finding the Fourth Proportional to 102,984.40, 154,217.40 and 67,733.20

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Solution

The fourth proportional to 102,984.40, 154,217.40 and 67,733.20 is: 101,429.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,984.40 : 154,217.40 = 67,733.20 : x
  2. Step 2: Convert to fraction form
    102,984.40/154,217.40 = 67,733.20/x
  3. Step 3: Cross multiply
    102,984.40x = 154,217.40 × 67,733.20
  4. Step 4: Simplify right side
    102,984.40x = 10,445,637,997.68
  5. Step 5: Solve for x
    x = 10,445,637,997.68/102,984.40
  6. Step 6: Final answer
    x = 101,429.32

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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.