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Finding the Fourth Proportional to 149,810.40, 224,715.60 and 90,615.60

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Solution

The fourth proportional to 149,810.40, 224,715.60 and 90,615.60 is: 135,923.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,810.40 : 224,715.60 = 90,615.60 : x
  2. Step 2: Convert to fraction form
    149,810.40/224,715.60 = 90,615.60/x
  3. Step 3: Cross multiply
    149,810.40x = 224,715.60 × 90,615.60
  4. Step 4: Simplify right side
    149,810.40x = 20,362,738,923.36
  5. Step 5: Solve for x
    x = 20,362,738,923.36/149,810.40
  6. Step 6: Final answer
    x = 135,923.40

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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.