Home / 106,782.11-147,354.62-61,461.54

Finding the Fourth Proportional to 106,782.11, 147,354.62 and 61,461.54

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Solution

The fourth proportional to 106,782.11, 147,354.62 and 61,461.54 is: 84,814.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,782.11 : 147,354.62 = 61,461.54 : x
  2. Step 2: Convert to fraction form
    106,782.11/147,354.62 = 61,461.54/x
  3. Step 3: Cross multiply
    106,782.11x = 147,354.62 × 61,461.54
  4. Step 4: Simplify right side
    106,782.11x = 9,056,641,564.01
  5. Step 5: Solve for x
    x = 9,056,641,564.01/106,782.11
  6. Step 6: Final answer
    x = 84,814.23

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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.