Home / 112,021.67-154,583.79-63,622.40

Finding the Fourth Proportional to 112,021.67, 154,583.79 and 63,622.40

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Solution

The fourth proportional to 112,021.67, 154,583.79 and 63,622.40 is: 87,795.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,021.67 : 154,583.79 = 63,622.40 : x
  2. Step 2: Convert to fraction form
    112,021.67/154,583.79 = 63,622.40/x
  3. Step 3: Cross multiply
    112,021.67x = 154,583.79 × 63,622.40
  4. Step 4: Simplify right side
    112,021.67x = 9,834,990,947.98
  5. Step 5: Solve for x
    x = 9,834,990,947.98/112,021.67
  6. Step 6: Final answer
    x = 87,795.44

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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.