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Finding the Fourth Proportional to 79,923.60, 112,100.40 and 79,923.60

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Solution

The fourth proportional to 79,923.60, 112,100.40 and 79,923.60 is: 112,100.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,923.60 : 112,100.40 = 79,923.60 : x
  2. Step 2: Convert to fraction form
    79,923.60/112,100.40 = 79,923.60/x
  3. Step 3: Cross multiply
    79,923.60x = 112,100.40 × 79,923.60
  4. Step 4: Simplify right side
    79,923.60x = 8,959,467,529.44
  5. Step 5: Solve for x
    x = 8,959,467,529.44/79,923.60
  6. Step 6: Final answer
    x = 112,100.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.