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Finding the Fourth Proportional to 145,941.80, 218,912.70 and 93,453.80

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Solution

The fourth proportional to 145,941.80, 218,912.70 and 93,453.80 is: 140,180.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,941.80 : 218,912.70 = 93,453.80 : x
  2. Step 2: Convert to fraction form
    145,941.80/218,912.70 = 93,453.80/x
  3. Step 3: Cross multiply
    145,941.80x = 218,912.70 × 93,453.80
  4. Step 4: Simplify right side
    145,941.80x = 20,458,223,683.26
  5. Step 5: Solve for x
    x = 20,458,223,683.26/145,941.80
  6. Step 6: Final answer
    x = 140,180.70

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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.