Home / 100,811.28-151,239.47-30,696.06

Finding the Fourth Proportional to 100,811.28, 151,239.47 and 30,696.06

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Solution

The fourth proportional to 100,811.28, 151,239.47 and 30,696.06 is: 46,050.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,811.28 : 151,239.47 = 30,696.06 : x
  2. Step 2: Convert to fraction form
    100,811.28/151,239.47 = 30,696.06/x
  3. Step 3: Cross multiply
    100,811.28x = 151,239.47 × 30,696.06
  4. Step 4: Simplify right side
    100,811.28x = 4,642,455,845.49
  5. Step 5: Solve for x
    x = 4,642,455,845.49/100,811.28
  6. Step 6: Final answer
    x = 46,050.96

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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.