Home / 140,004.23-209,921.90-55,777.40

Finding the Fourth Proportional to 140,004.23, 209,921.90 and 55,777.40

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Solution

The fourth proportional to 140,004.23, 209,921.90 and 55,777.40 is: 83,632.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,004.23 : 209,921.90 = 55,777.40 : x
  2. Step 2: Convert to fraction form
    140,004.23/209,921.90 = 55,777.40/x
  3. Step 3: Cross multiply
    140,004.23x = 209,921.90 × 55,777.40
  4. Step 4: Simplify right side
    140,004.23x = 11,708,896,456.56
  5. Step 5: Solve for x
    x = 11,708,896,456.56/140,004.23
  6. Step 6: Final answer
    x = 83,632.45

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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.