Home / 145,829.78-218,982.00-90,024.63

Finding the Fourth Proportional to 145,829.78, 218,982.00 and 90,024.63

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Solution

The fourth proportional to 145,829.78, 218,982.00 and 90,024.63 is: 135,183.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,829.78 : 218,982.00 = 90,024.63 : x
  2. Step 2: Convert to fraction form
    145,829.78/218,982.00 = 90,024.63/x
  3. Step 3: Cross multiply
    145,829.78x = 218,982.00 × 90,024.63
  4. Step 4: Simplify right side
    145,829.78x = 19,713,774,179.05
  5. Step 5: Solve for x
    x = 19,713,774,179.05/145,829.78
  6. Step 6: Final answer
    x = 135,183.46

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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.