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Finding the Fourth Proportional to 112,220, 154,866.84 and 61,922.24

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Solution

The fourth proportional to 112,220, 154,866.84 and 61,922.24 is: 85,454.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,220 : 154,866.84 = 61,922.24 : x
  2. Step 2: Convert to fraction form
    112,220/154,866.84 = 61,922.24/x
  3. Step 3: Cross multiply
    112,220x = 154,866.84 × 61,922.24
  4. Step 4: Simplify right side
    112,220x = 9,589,701,634.52
  5. Step 5: Solve for x
    x = 9,589,701,634.52/112,220
  6. Step 6: Final answer
    x = 85,454.48

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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.