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Finding the Fourth Proportional to 100,323.60, 150,312.60 and 52,868.40

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Solution

The fourth proportional to 100,323.60, 150,312.60 and 52,868.40 is: 79,211.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,323.60 : 150,312.60 = 52,868.40 : x
  2. Step 2: Convert to fraction form
    100,323.60/150,312.60 = 52,868.40/x
  3. Step 3: Cross multiply
    100,323.60x = 150,312.60 × 52,868.40
  4. Step 4: Simplify right side
    100,323.60x = 7,946,786,661.84
  5. Step 5: Solve for x
    x = 7,946,786,661.84/100,323.60
  6. Step 6: Final answer
    x = 79,211.54

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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.