Home / 131,268.63-181,395.96-107,386.59

Finding the Fourth Proportional to 131,268.63, 181,395.96 and 107,386.59

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Solution

The fourth proportional to 131,268.63, 181,395.96 and 107,386.59 is: 148,394.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,268.63 : 181,395.96 = 107,386.59 : x
  2. Step 2: Convert to fraction form
    131,268.63/181,395.96 = 107,386.59/x
  3. Step 3: Cross multiply
    131,268.63x = 181,395.96 × 107,386.59
  4. Step 4: Simplify right side
    131,268.63x = 19,479,493,584.18
  5. Step 5: Solve for x
    x = 19,479,493,584.18/131,268.63
  6. Step 6: Final answer
    x = 148,394.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.