Home / 199,710.39-275,602.21-113,665.15

Finding the Fourth Proportional to 199,710.39, 275,602.21 and 113,665.15

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Solution

The fourth proportional to 199,710.39, 275,602.21 and 113,665.15 is: 156,858.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,710.39 : 275,602.21 = 113,665.15 : x
  2. Step 2: Convert to fraction form
    199,710.39/275,602.21 = 113,665.15/x
  3. Step 3: Cross multiply
    199,710.39x = 275,602.21 × 113,665.15
  4. Step 4: Simplify right side
    199,710.39x = 31,326,365,985.03
  5. Step 5: Solve for x
    x = 31,326,365,985.03/199,710.39
  6. Step 6: Final answer
    x = 156,858.97

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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.