Home / 124,129.03-171,298.80-67,540.81

Finding the Fourth Proportional to 124,129.03, 171,298.80 and 67,540.81

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Solution

The fourth proportional to 124,129.03, 171,298.80 and 67,540.81 is: 93,206.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,129.03 : 171,298.80 = 67,540.81 : x
  2. Step 2: Convert to fraction form
    124,129.03/171,298.80 = 67,540.81/x
  3. Step 3: Cross multiply
    124,129.03x = 171,298.80 × 67,540.81
  4. Step 4: Simplify right side
    124,129.03x = 11,569,659,704.03
  5. Step 5: Solve for x
    x = 11,569,659,704.03/124,129.03
  6. Step 6: Final answer
    x = 93,206.72

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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.