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Finding the Fourth Proportional to 200,069.70, 299,701.35 and 124,959.30

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Solution

The fourth proportional to 200,069.70, 299,701.35 and 124,959.30 is: 187,187.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,069.70 : 299,701.35 = 124,959.30 : x
  2. Step 2: Convert to fraction form
    200,069.70/299,701.35 = 124,959.30/x
  3. Step 3: Cross multiply
    200,069.70x = 299,701.35 × 124,959.30
  4. Step 4: Simplify right side
    200,069.70x = 37,450,470,905.06
  5. Step 5: Solve for x
    x = 37,450,470,905.06/200,069.70
  6. Step 6: Final answer
    x = 187,187.12

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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.