Home / 106,918.80-147,563.55-61,587.96

Finding the Fourth Proportional to 106,918.80, 147,563.55 and 61,587.96

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Solution

The fourth proportional to 106,918.80, 147,563.55 and 61,587.96 is: 85,000.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,918.80 : 147,563.55 = 61,587.96 : x
  2. Step 2: Convert to fraction form
    106,918.80/147,563.55 = 61,587.96/x
  3. Step 3: Cross multiply
    106,918.80x = 147,563.55 × 61,587.96
  4. Step 4: Simplify right side
    106,918.80x = 9,088,138,014.86
  5. Step 5: Solve for x
    x = 9,088,138,014.86/106,918.80
  6. Step 6: Final answer
    x = 85,000.37

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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.