Home / 117,856.96-162,698.24-75,440.10

Finding the Fourth Proportional to 117,856.96, 162,698.24 and 75,440.10

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Solution

The fourth proportional to 117,856.96, 162,698.24 and 75,440.10 is: 104,142.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,856.96 : 162,698.24 = 75,440.10 : x
  2. Step 2: Convert to fraction form
    117,856.96/162,698.24 = 75,440.10/x
  3. Step 3: Cross multiply
    117,856.96x = 162,698.24 × 75,440.10
  4. Step 4: Simplify right side
    117,856.96x = 12,273,971,495.42
  5. Step 5: Solve for x
    x = 12,273,971,495.42/117,856.96
  6. Step 6: Final answer
    x = 104,142.95

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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.