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Finding the Fourth Proportional to 145,682.40, 201,041.52 and 82,040.70

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Solution

The fourth proportional to 145,682.40, 201,041.52 and 82,040.70 is: 113,216.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,682.40 : 201,041.52 = 82,040.70 : x
  2. Step 2: Convert to fraction form
    145,682.40/201,041.52 = 82,040.70/x
  3. Step 3: Cross multiply
    145,682.40x = 201,041.52 × 82,040.70
  4. Step 4: Simplify right side
    145,682.40x = 16,493,587,029.86
  5. Step 5: Solve for x
    x = 16,493,587,029.86/145,682.40
  6. Step 6: Final answer
    x = 113,216.06

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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.