Home / 128,546.10-192,765.87-48,570.26

Finding the Fourth Proportional to 128,546.10, 192,765.87 and 48,570.26

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Solution

The fourth proportional to 128,546.10, 192,765.87 and 48,570.26 is: 72,835.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,546.10 : 192,765.87 = 48,570.26 : x
  2. Step 2: Convert to fraction form
    128,546.10/192,765.87 = 48,570.26/x
  3. Step 3: Cross multiply
    128,546.10x = 192,765.87 × 48,570.26
  4. Step 4: Simplify right side
    128,546.10x = 9,362,687,461.20
  5. Step 5: Solve for x
    x = 9,362,687,461.20/128,546.10
  6. Step 6: Final answer
    x = 72,835.25

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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.