Home / 146,643.72-220,048.79-79,174.85

Finding the Fourth Proportional to 146,643.72, 220,048.79 and 79,174.85

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Solution

The fourth proportional to 146,643.72, 220,048.79 and 79,174.85 is: 118,807.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,643.72 : 220,048.79 = 79,174.85 : x
  2. Step 2: Convert to fraction form
    146,643.72/220,048.79 = 79,174.85/x
  3. Step 3: Cross multiply
    146,643.72x = 220,048.79 × 79,174.85
  4. Step 4: Simplify right side
    146,643.72x = 17,422,330,350.63
  5. Step 5: Solve for x
    x = 17,422,330,350.63/146,643.72
  6. Step 6: Final answer
    x = 118,807.21

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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.