Home / 158,144.72-218,239.46-86,525.03

Finding the Fourth Proportional to 158,144.72, 218,239.46 and 86,525.03

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Solution

The fourth proportional to 158,144.72, 218,239.46 and 86,525.03 is: 119,404.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,144.72 : 218,239.46 = 86,525.03 : x
  2. Step 2: Convert to fraction form
    158,144.72/218,239.46 = 86,525.03/x
  3. Step 3: Cross multiply
    158,144.72x = 218,239.46 × 86,525.03
  4. Step 4: Simplify right side
    158,144.72x = 18,883,174,299.86
  5. Step 5: Solve for x
    x = 18,883,174,299.86/158,144.72
  6. Step 6: Final answer
    x = 119,404.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.