Home / 100,809.02-151,236.48-30,693.80

Finding the Fourth Proportional to 100,809.02, 151,236.48 and 30,693.80

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Solution

The fourth proportional to 100,809.02, 151,236.48 and 30,693.80 is: 46,047.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,809.02 : 151,236.48 = 30,693.80 : x
  2. Step 2: Convert to fraction form
    100,809.02/151,236.48 = 30,693.80/x
  3. Step 3: Cross multiply
    100,809.02x = 151,236.48 × 30,693.80
  4. Step 4: Simplify right side
    100,809.02x = 4,642,022,269.82
  5. Step 5: Solve for x
    x = 4,642,022,269.82/100,809.02
  6. Step 6: Final answer
    x = 46,047.69

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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.