Home / 106,734.72-147,299.61-61,419.60

Finding the Fourth Proportional to 106,734.72, 147,299.61 and 61,419.60

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Solution

The fourth proportional to 106,734.72, 147,299.61 and 61,419.60 is: 84,762.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,734.72 : 147,299.61 = 61,419.60 : x
  2. Step 2: Convert to fraction form
    106,734.72/147,299.61 = 61,419.60/x
  3. Step 3: Cross multiply
    106,734.72x = 147,299.61 × 61,419.60
  4. Step 4: Simplify right side
    106,734.72x = 9,047,083,126.36
  5. Step 5: Solve for x
    x = 9,047,083,126.36/106,734.72
  6. Step 6: Final answer
    x = 84,762.33

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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.