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Finding the Fourth Proportional to 112,307.82, 154,928.86 and 66,953.84

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Solution

The fourth proportional to 112,307.82, 154,928.86 and 66,953.84 is: 92,362.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,307.82 : 154,928.86 = 66,953.84 : x
  2. Step 2: Convert to fraction form
    112,307.82/154,928.86 = 66,953.84/x
  3. Step 3: Cross multiply
    112,307.82x = 154,928.86 × 66,953.84
  4. Step 4: Simplify right side
    112,307.82x = 10,373,082,103.82
  5. Step 5: Solve for x
    x = 10,373,082,103.82/112,307.82
  6. Step 6: Final answer
    x = 92,362.95

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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.