Home / 104,411.69-143,979.22-61,962.02

Finding the Fourth Proportional to 104,411.69, 143,979.22 and 61,962.02

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Solution

The fourth proportional to 104,411.69, 143,979.22 and 61,962.02 is: 85,442.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,411.69 : 143,979.22 = 61,962.02 : x
  2. Step 2: Convert to fraction form
    104,411.69/143,979.22 = 61,962.02/x
  3. Step 3: Cross multiply
    104,411.69x = 143,979.22 × 61,962.02
  4. Step 4: Simplify right side
    104,411.69x = 8,921,243,309.22
  5. Step 5: Solve for x
    x = 8,921,243,309.22/104,411.69
  6. Step 6: Final answer
    x = 85,442.95

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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.