Home / 100,668.45-151,003.58-30,547.76

Finding the Fourth Proportional to 100,668.45, 151,003.58 and 30,547.76

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Solution

The fourth proportional to 100,668.45, 151,003.58 and 30,547.76 is: 45,821.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,668.45 : 151,003.58 = 30,547.76 : x
  2. Step 2: Convert to fraction form
    100,668.45/151,003.58 = 30,547.76/x
  3. Step 3: Cross multiply
    100,668.45x = 151,003.58 × 30,547.76
  4. Step 4: Simplify right side
    100,668.45x = 4,612,820,766.80
  5. Step 5: Solve for x
    x = 4,612,820,766.80/100,668.45
  6. Step 6: Final answer
    x = 45,821.91

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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.