Home / 119,198.57-164,639.72-89,117.60

Finding the Fourth Proportional to 119,198.57, 164,639.72 and 89,117.60

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Solution

The fourth proportional to 119,198.57, 164,639.72 and 89,117.60 is: 123,091.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,198.57 : 164,639.72 = 89,117.60 : x
  2. Step 2: Convert to fraction form
    119,198.57/164,639.72 = 89,117.60/x
  3. Step 3: Cross multiply
    119,198.57x = 164,639.72 × 89,117.60
  4. Step 4: Simplify right side
    119,198.57x = 14,672,296,110.67
  5. Step 5: Solve for x
    x = 14,672,296,110.67/119,198.57
  6. Step 6: Final answer
    x = 123,091.21

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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.