Home / 148,816.20-223,224.30-85,830.60

Finding the Fourth Proportional to 148,816.20, 223,224.30 and 85,830.60

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Solution

The fourth proportional to 148,816.20, 223,224.30 and 85,830.60 is: 128,745.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,816.20 : 223,224.30 = 85,830.60 : x
  2. Step 2: Convert to fraction form
    148,816.20/223,224.30 = 85,830.60/x
  3. Step 3: Cross multiply
    148,816.20x = 223,224.30 × 85,830.60
  4. Step 4: Simplify right side
    148,816.20x = 19,159,475,603.58
  5. Step 5: Solve for x
    x = 19,159,475,603.58/148,816.20
  6. Step 6: Final answer
    x = 128,745.90

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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.