Home / 142,084.48-213,057.60-82,939.36

Finding the Fourth Proportional to 142,084.48, 213,057.60 and 82,939.36

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Solution

The fourth proportional to 142,084.48, 213,057.60 and 82,939.36 is: 124,368.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,084.48 : 213,057.60 = 82,939.36 : x
  2. Step 2: Convert to fraction form
    142,084.48/213,057.60 = 82,939.36/x
  3. Step 3: Cross multiply
    142,084.48x = 213,057.60 × 82,939.36
  4. Step 4: Simplify right side
    142,084.48x = 17,670,860,987.14
  5. Step 5: Solve for x
    x = 17,670,860,987.14/142,084.48
  6. Step 6: Final answer
    x = 124,368.69

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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.