Home / 140,069.37-209,749.23-86,865.24

Finding the Fourth Proportional to 140,069.37, 209,749.23 and 86,865.24

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Solution

The fourth proportional to 140,069.37, 209,749.23 and 86,865.24 is: 130,077.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,069.37 : 209,749.23 = 86,865.24 : x
  2. Step 2: Convert to fraction form
    140,069.37/209,749.23 = 86,865.24/x
  3. Step 3: Cross multiply
    140,069.37x = 209,749.23 × 86,865.24
  4. Step 4: Simplify right side
    140,069.37x = 18,219,917,203.77
  5. Step 5: Solve for x
    x = 18,219,917,203.77/140,069.37
  6. Step 6: Final answer
    x = 130,077.81

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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.