Home / 103,008.36-154,514.60-67,694.81

Finding the Fourth Proportional to 103,008.36, 154,514.60 and 67,694.81

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Solution

The fourth proportional to 103,008.36, 154,514.60 and 67,694.81 is: 101,543.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,008.36 : 154,514.60 = 67,694.81 : x
  2. Step 2: Convert to fraction form
    103,008.36/154,514.60 = 67,694.81/x
  3. Step 3: Cross multiply
    103,008.36x = 154,514.60 × 67,694.81
  4. Step 4: Simplify right side
    103,008.36x = 10,459,835,378.18
  5. Step 5: Solve for x
    x = 10,459,835,378.18/103,008.36
  6. Step 6: Final answer
    x = 101,543.56

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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.