Home / 145,431.64-218,147.46-45,592.36

Finding the Fourth Proportional to 145,431.64, 218,147.46 and 45,592.36

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Solution

The fourth proportional to 145,431.64, 218,147.46 and 45,592.36 is: 68,388.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,431.64 : 218,147.46 = 45,592.36 : x
  2. Step 2: Convert to fraction form
    145,431.64/218,147.46 = 45,592.36/x
  3. Step 3: Cross multiply
    145,431.64x = 218,147.46 × 45,592.36
  4. Step 4: Simplify right side
    145,431.64x = 9,945,857,529.41
  5. Step 5: Solve for x
    x = 9,945,857,529.41/145,431.64
  6. Step 6: Final answer
    x = 68,388.54

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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.