Home / 199,538.82-299,311.02-66,419.58

Finding the Fourth Proportional to 199,538.82, 299,311.02 and 66,419.58

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Solution

The fourth proportional to 199,538.82, 299,311.02 and 66,419.58 is: 99,630.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,538.82 : 299,311.02 = 66,419.58 : x
  2. Step 2: Convert to fraction form
    199,538.82/299,311.02 = 66,419.58/x
  3. Step 3: Cross multiply
    199,538.82x = 299,311.02 × 66,419.58
  4. Step 4: Simplify right side
    199,538.82x = 19,880,112,237.77
  5. Step 5: Solve for x
    x = 19,880,112,237.77/199,538.82
  6. Step 6: Final answer
    x = 99,630.30

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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.