Home / 210,426.19-315,683.62-68,260.37

Finding the Fourth Proportional to 210,426.19, 315,683.62 and 68,260.37

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Solution

The fourth proportional to 210,426.19, 315,683.62 and 68,260.37 is: 102,404.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,426.19 : 315,683.62 = 68,260.37 : x
  2. Step 2: Convert to fraction form
    210,426.19/315,683.62 = 68,260.37/x
  3. Step 3: Cross multiply
    210,426.19x = 315,683.62 × 68,260.37
  4. Step 4: Simplify right side
    210,426.19x = 21,548,679,928.93
  5. Step 5: Solve for x
    x = 21,548,679,928.93/210,426.19
  6. Step 6: Final answer
    x = 102,404.93

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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.