Home / 145,786.50-218,185.97-89,662.19

Finding the Fourth Proportional to 145,786.50, 218,185.97 and 89,662.19

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Solution

The fourth proportional to 145,786.50, 218,185.97 and 89,662.19 is: 134,189.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,786.50 : 218,185.97 = 89,662.19 : x
  2. Step 2: Convert to fraction form
    145,786.50/218,185.97 = 89,662.19/x
  3. Step 3: Cross multiply
    145,786.50x = 218,185.97 × 89,662.19
  4. Step 4: Simplify right side
    145,786.50x = 19,563,030,358.23
  5. Step 5: Solve for x
    x = 19,563,030,358.23/145,786.50
  6. Step 6: Final answer
    x = 134,189.59

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1.5x scale

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.