Home / 118,911.63-178,397.16-83,919.63

Finding the Fourth Proportional to 118,911.63, 178,397.16 and 83,919.63

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Solution

The fourth proportional to 118,911.63, 178,397.16 and 83,919.63 is: 125,900.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,911.63 : 178,397.16 = 83,919.63 : x
  2. Step 2: Convert to fraction form
    118,911.63/178,397.16 = 83,919.63/x
  3. Step 3: Cross multiply
    118,911.63x = 178,397.16 × 83,919.63
  4. Step 4: Simplify right side
    118,911.63x = 14,971,023,660.25
  5. Step 5: Solve for x
    x = 14,971,023,660.25/118,911.63
  6. Step 6: Final answer
    x = 125,900.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.