Home / 118,771.68-163,628.16-82,898.40

Finding the Fourth Proportional to 118,771.68, 163,628.16 and 82,898.40

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Solution

The fourth proportional to 118,771.68, 163,628.16 and 82,898.40 is: 114,206.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,771.68 : 163,628.16 = 82,898.40 : x
  2. Step 2: Convert to fraction form
    118,771.68/163,628.16 = 82,898.40/x
  3. Step 3: Cross multiply
    118,771.68x = 163,628.16 × 82,898.40
  4. Step 4: Simplify right side
    118,771.68x = 13,564,512,658.94
  5. Step 5: Solve for x
    x = 13,564,512,658.94/118,771.68
  6. Step 6: Final answer
    x = 114,206.62

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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.