Home / 112,629.56-155,427.39-61,642.08

Finding the Fourth Proportional to 112,629.56, 155,427.39 and 61,642.08

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Solution

The fourth proportional to 112,629.56, 155,427.39 and 61,642.08 is: 85,065.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,629.56 : 155,427.39 = 61,642.08 : x
  2. Step 2: Convert to fraction form
    112,629.56/155,427.39 = 61,642.08/x
  3. Step 3: Cross multiply
    112,629.56x = 155,427.39 × 61,642.08
  4. Step 4: Simplify right side
    112,629.56x = 9,580,867,608.57
  5. Step 5: Solve for x
    x = 9,580,867,608.57/112,629.56
  6. Step 6: Final answer
    x = 85,065.31

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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.