Home / 117,682.35-162,438.80-75,241.05

Finding the Fourth Proportional to 117,682.35, 162,438.80 and 75,241.05

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Solution

The fourth proportional to 117,682.35, 162,438.80 and 75,241.05 is: 103,856.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,682.35 : 162,438.80 = 75,241.05 : x
  2. Step 2: Convert to fraction form
    117,682.35/162,438.80 = 75,241.05/x
  3. Step 3: Cross multiply
    117,682.35x = 162,438.80 × 75,241.05
  4. Step 4: Simplify right side
    117,682.35x = 12,222,065,496.53
  5. Step 5: Solve for x
    x = 12,222,065,496.53/117,682.35
  6. Step 6: Final answer
    x = 103,856.40

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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.