Home / 259,671.67-390,192.48-139,817.23

Finding the Fourth Proportional to 259,671.67, 390,192.48 and 139,817.23

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Solution

The fourth proportional to 259,671.67, 390,192.48 and 139,817.23 is: 210,094.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,671.67 : 390,192.48 = 139,817.23 : x
  2. Step 2: Convert to fraction form
    259,671.67/390,192.48 = 139,817.23/x
  3. Step 3: Cross multiply
    259,671.67x = 390,192.48 × 139,817.23
  4. Step 4: Simplify right side
    259,671.67x = 54,555,631,720.43
  5. Step 5: Solve for x
    x = 54,555,631,720.43/259,671.67
  6. Step 6: Final answer
    x = 210,094.66

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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.