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Finding the Fourth Proportional to 104,818.71, 144,648.38 and 57,072.06

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Solution

The fourth proportional to 104,818.71, 144,648.38 and 57,072.06 is: 78,758.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,818.71 : 144,648.38 = 57,072.06 : x
  2. Step 2: Convert to fraction form
    104,818.71/144,648.38 = 57,072.06/x
  3. Step 3: Cross multiply
    104,818.71x = 144,648.38 × 57,072.06
  4. Step 4: Simplify right side
    104,818.71x = 8,255,381,022.26
  5. Step 5: Solve for x
    x = 8,255,381,022.26/104,818.71
  6. Step 6: Final answer
    x = 78,758.66

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.