Home / 146,079.12-219,503.98-78,661.00

Finding the Fourth Proportional to 146,079.12, 219,503.98 and 78,661.00

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Solution

The fourth proportional to 146,079.12, 219,503.98 and 78,661.00 is: 118,198.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,079.12 : 219,503.98 = 78,661.00 : x
  2. Step 2: Convert to fraction form
    146,079.12/219,503.98 = 78,661.00/x
  3. Step 3: Cross multiply
    146,079.12x = 219,503.98 × 78,661.00
  4. Step 4: Simplify right side
    146,079.12x = 17,266,401,825.37
  5. Step 5: Solve for x
    x = 17,266,401,825.37/146,079.12
  6. Step 6: Final answer
    x = 118,198.97

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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.