Home / 124,217.30-171,419.64-67,628.54

Finding the Fourth Proportional to 124,217.30, 171,419.64 and 67,628.54

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Solution

The fourth proportional to 124,217.30, 171,419.64 and 67,628.54 is: 93,327.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,217.30 : 171,419.64 = 67,628.54 : x
  2. Step 2: Convert to fraction form
    124,217.30/171,419.64 = 67,628.54/x
  3. Step 3: Cross multiply
    124,217.30x = 171,419.64 × 67,628.54
  4. Step 4: Simplify right side
    124,217.30x = 11,592,859,980.53
  5. Step 5: Solve for x
    x = 11,592,859,980.53/124,217.30
  6. Step 6: Final answer
    x = 93,327.26

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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.