Home / 124,890.22-172,352.87-71,166.57

Finding the Fourth Proportional to 124,890.22, 172,352.87 and 71,166.57

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Solution

The fourth proportional to 124,890.22, 172,352.87 and 71,166.57 is: 98,212.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,890.22 : 172,352.87 = 71,166.57 : x
  2. Step 2: Convert to fraction form
    124,890.22/172,352.87 = 71,166.57/x
  3. Step 3: Cross multiply
    124,890.22x = 172,352.87 × 71,166.57
  4. Step 4: Simplify right side
    124,890.22x = 12,265,761,852.27
  5. Step 5: Solve for x
    x = 12,265,761,852.27/124,890.22
  6. Step 6: Final answer
    x = 98,212.35

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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.