Home / 259,968.90-390,062.70-141,725.10

Finding the Fourth Proportional to 259,968.90, 390,062.70 and 141,725.10

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Solution

The fourth proportional to 259,968.90, 390,062.70 and 141,725.10 is: 212,647.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,968.90 : 390,062.70 = 141,725.10 : x
  2. Step 2: Convert to fraction form
    259,968.90/390,062.70 = 141,725.10/x
  3. Step 3: Cross multiply
    259,968.90x = 390,062.70 × 141,725.10
  4. Step 4: Simplify right side
    259,968.90x = 55,281,675,163.77
  5. Step 5: Solve for x
    x = 55,281,675,163.77/259,968.90
  6. Step 6: Final answer
    x = 212,647.26

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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.