Home / 145,585.72-218,305.68-45,744.60

Finding the Fourth Proportional to 145,585.72, 218,305.68 and 45,744.60

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Solution

The fourth proportional to 145,585.72, 218,305.68 and 45,744.60 is: 68,593.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,585.72 : 218,305.68 = 45,744.60 : x
  2. Step 2: Convert to fraction form
    145,585.72/218,305.68 = 45,744.60/x
  3. Step 3: Cross multiply
    145,585.72x = 218,305.68 × 45,744.60
  4. Step 4: Simplify right side
    145,585.72x = 9,986,306,009.33
  5. Step 5: Solve for x
    x = 9,986,306,009.33/145,585.72
  6. Step 6: Final answer
    x = 68,593.99

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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.