Home / 112,276.40-154,888.64-66,928.56

Finding the Fourth Proportional to 112,276.40, 154,888.64 and 66,928.56

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Solution

The fourth proportional to 112,276.40, 154,888.64 and 66,928.56 is: 92,329.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,276.40 : 154,888.64 = 66,928.56 : x
  2. Step 2: Convert to fraction form
    112,276.40/154,888.64 = 66,928.56/x
  3. Step 3: Cross multiply
    112,276.40x = 154,888.64 × 66,928.56
  4. Step 4: Simplify right side
    112,276.40x = 10,366,473,635.56
  5. Step 5: Solve for x
    x = 10,366,473,635.56/112,276.40
  6. Step 6: Final answer
    x = 92,329.94

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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.