Home / 117,682.10-162,438.45-75,240.80

Finding the Fourth Proportional to 117,682.10, 162,438.45 and 75,240.80

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Solution

The fourth proportional to 117,682.10, 162,438.45 and 75,240.80 is: 103,856.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,682.10 : 162,438.45 = 75,240.80 : x
  2. Step 2: Convert to fraction form
    117,682.10/162,438.45 = 75,240.80/x
  3. Step 3: Cross multiply
    117,682.10x = 162,438.45 × 75,240.80
  4. Step 4: Simplify right side
    117,682.10x = 12,221,998,928.76
  5. Step 5: Solve for x
    x = 12,221,998,928.76/117,682.10
  6. Step 6: Final answer
    x = 103,856.06

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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.