Home / 112,027.64-154,549.57-66,680.20

Finding the Fourth Proportional to 112,027.64, 154,549.57 and 66,680.20

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Solution

The fourth proportional to 112,027.64, 154,549.57 and 66,680.20 is: 91,989.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,027.64 : 154,549.57 = 66,680.20 : x
  2. Step 2: Convert to fraction form
    112,027.64/154,549.57 = 66,680.20/x
  3. Step 3: Cross multiply
    112,027.64x = 154,549.57 × 66,680.20
  4. Step 4: Simplify right side
    112,027.64x = 10,305,395,464.77
  5. Step 5: Solve for x
    x = 10,305,395,464.77/112,027.64
  6. Step 6: Final answer
    x = 91,989.76

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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.