Home / 145,660.37-201,015.03-82,000.40

Finding the Fourth Proportional to 145,660.37, 201,015.03 and 82,000.40

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Solution

The fourth proportional to 145,660.37, 201,015.03 and 82,000.40 is: 113,162.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,660.37 : 201,015.03 = 82,000.40 : x
  2. Step 2: Convert to fraction form
    145,660.37/201,015.03 = 82,000.40/x
  3. Step 3: Cross multiply
    145,660.37x = 201,015.03 × 82,000.40
  4. Step 4: Simplify right side
    145,660.37x = 16,483,311,860.94
  5. Step 5: Solve for x
    x = 16,483,311,860.94/145,660.37
  6. Step 6: Final answer
    x = 113,162.64

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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.