Home / 117,838.42-162,620.70-66,853.30

Finding the Fourth Proportional to 117,838.42, 162,620.70 and 66,853.30

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Solution

The fourth proportional to 117,838.42, 162,620.70 and 66,853.30 is: 92,259.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,838.42 : 162,620.70 = 66,853.30 : x
  2. Step 2: Convert to fraction form
    117,838.42/162,620.70 = 66,853.30/x
  3. Step 3: Cross multiply
    117,838.42x = 162,620.70 × 66,853.30
  4. Step 4: Simplify right side
    117,838.42x = 10,871,729,989.33
  5. Step 5: Solve for x
    x = 10,871,729,989.33/117,838.42
  6. Step 6: Final answer
    x = 92,259.64

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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.