Home / 104,905.67-157,424.09-42,576.17

Finding the Fourth Proportional to 104,905.67, 157,424.09 and 42,576.17

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Solution

The fourth proportional to 104,905.67, 157,424.09 and 42,576.17 is: 63,890.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,905.67 : 157,424.09 = 42,576.17 : x
  2. Step 2: Convert to fraction form
    104,905.67/157,424.09 = 42,576.17/x
  3. Step 3: Cross multiply
    104,905.67x = 157,424.09 × 42,576.17
  4. Step 4: Simplify right side
    104,905.67x = 6,702,513,817.93
  5. Step 5: Solve for x
    x = 6,702,513,817.93/104,905.67
  6. Step 6: Final answer
    x = 63,890.87

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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.