Home / 142,992.45-214,549.25-71,877.65

Finding the Fourth Proportional to 142,992.45, 214,549.25 and 71,877.65

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Solution

The fourth proportional to 142,992.45, 214,549.25 and 71,877.65 is: 107,846.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,992.45 : 214,549.25 = 71,877.65 : x
  2. Step 2: Convert to fraction form
    142,992.45/214,549.25 = 71,877.65/x
  3. Step 3: Cross multiply
    142,992.45x = 214,549.25 × 71,877.65
  4. Step 4: Simplify right side
    142,992.45x = 15,421,294,467.13
  5. Step 5: Solve for x
    x = 15,421,294,467.13/142,992.45
  6. Step 6: Final answer
    x = 107,846.91

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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.