Home / 145,399.24-218,109.23-38,782.60

Finding the Fourth Proportional to 145,399.24, 218,109.23 and 38,782.60

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Solution

The fourth proportional to 145,399.24, 218,109.23 and 38,782.60 is: 58,176.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,399.24 : 218,109.23 = 38,782.60 : x
  2. Step 2: Convert to fraction form
    145,399.24/218,109.23 = 38,782.60/x
  3. Step 3: Cross multiply
    145,399.24x = 218,109.23 × 38,782.60
  4. Step 4: Simplify right side
    145,399.24x = 8,458,841,932.85
  5. Step 5: Solve for x
    x = 8,458,841,932.85/145,399.24
  6. Step 6: Final answer
    x = 58,176.66

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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.