Home / 145,782.11-218,179.42-89,657.83

Finding the Fourth Proportional to 145,782.11, 218,179.42 and 89,657.83

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Solution

The fourth proportional to 145,782.11, 218,179.42 and 89,657.83 is: 134,183.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,782.11 : 218,179.42 = 89,657.83 : x
  2. Step 2: Convert to fraction form
    145,782.11/218,179.42 = 89,657.83/x
  3. Step 3: Cross multiply
    145,782.11x = 218,179.42 × 89,657.83
  4. Step 4: Simplify right side
    145,782.11x = 19,561,493,347.86
  5. Step 5: Solve for x
    x = 19,561,493,347.86/145,782.11
  6. Step 6: Final answer
    x = 134,183.09

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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.