Home / 102,682.20-153,908.10-43,507.80

Finding the Fourth Proportional to 102,682.20, 153,908.10 and 43,507.80

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Solution

The fourth proportional to 102,682.20, 153,908.10 and 43,507.80 is: 65,212.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,682.20 : 153,908.10 = 43,507.80 : x
  2. Step 2: Convert to fraction form
    102,682.20/153,908.10 = 43,507.80/x
  3. Step 3: Cross multiply
    102,682.20x = 153,908.10 × 43,507.80
  4. Step 4: Simplify right side
    102,682.20x = 6,696,202,833.18
  5. Step 5: Solve for x
    x = 6,696,202,833.18/102,682.20
  6. Step 6: Final answer
    x = 65,212.89

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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.