Home / 119,319.29-164,639.20-67,636.56

Finding the Fourth Proportional to 119,319.29, 164,639.20 and 67,636.56

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Solution

The fourth proportional to 119,319.29, 164,639.20 and 67,636.56 is: 93,326.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,319.29 : 164,639.20 = 67,636.56 : x
  2. Step 2: Convert to fraction form
    119,319.29/164,639.20 = 67,636.56/x
  3. Step 3: Cross multiply
    119,319.29x = 164,639.20 × 67,636.56
  4. Step 4: Simplify right side
    119,319.29x = 11,135,629,129.15
  5. Step 5: Solve for x
    x = 11,135,629,129.15/119,319.29
  6. Step 6: Final answer
    x = 93,326.31

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1.5x scale

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.