Home / 100,767.16-151,147.38-54,111.16

Finding the Fourth Proportional to 100,767.16, 151,147.38 and 54,111.16

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Solution

The fourth proportional to 100,767.16, 151,147.38 and 54,111.16 is: 81,164.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,767.16 : 151,147.38 = 54,111.16 : x
  2. Step 2: Convert to fraction form
    100,767.16/151,147.38 = 54,111.16/x
  3. Step 3: Cross multiply
    100,767.16x = 151,147.38 × 54,111.16
  4. Step 4: Simplify right side
    100,767.16x = 8,178,760,062.76
  5. Step 5: Solve for x
    x = 8,178,760,062.76/100,767.16
  6. Step 6: Final answer
    x = 81,164.94

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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.