Home / 199,386.56-275,142.65-113,333.60

Finding the Fourth Proportional to 199,386.56, 275,142.65 and 113,333.60

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Solution

The fourth proportional to 199,386.56, 275,142.65 and 113,333.60 is: 156,394.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,386.56 : 275,142.65 = 113,333.60 : x
  2. Step 2: Convert to fraction form
    199,386.56/275,142.65 = 113,333.60/x
  3. Step 3: Cross multiply
    199,386.56x = 275,142.65 × 113,333.60
  4. Step 4: Simplify right side
    199,386.56x = 31,182,906,471.37
  5. Step 5: Solve for x
    x = 31,182,906,471.37/199,386.56
  6. Step 6: Final answer
    x = 156,394.22

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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.