Home / 107,977.90-149,009.40-60,231.22

Finding the Fourth Proportional to 107,977.90, 149,009.40 and 60,231.22

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Solution

The fourth proportional to 107,977.90, 149,009.40 and 60,231.22 is: 83,119.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,977.90 : 149,009.40 = 60,231.22 : x
  2. Step 2: Convert to fraction form
    107,977.90/149,009.40 = 60,231.22/x
  3. Step 3: Cross multiply
    107,977.90x = 149,009.40 × 60,231.22
  4. Step 4: Simplify right side
    107,977.90x = 8,975,017,953.47
  5. Step 5: Solve for x
    x = 8,975,017,953.47/107,977.90
  6. Step 6: Final answer
    x = 83,119.03

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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.