Home / 141,821.51-212,771.14-74,358.02

Finding the Fourth Proportional to 141,821.51, 212,771.14 and 74,358.02

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Solution

The fourth proportional to 141,821.51, 212,771.14 and 74,358.02 is: 111,557.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,821.51 : 212,771.14 = 74,358.02 : x
  2. Step 2: Convert to fraction form
    141,821.51/212,771.14 = 74,358.02/x
  3. Step 3: Cross multiply
    141,821.51x = 212,771.14 × 74,358.02
  4. Step 4: Simplify right side
    141,821.51x = 15,821,241,029.58
  5. Step 5: Solve for x
    x = 15,821,241,029.58/141,821.51
  6. Step 6: Final answer
    x = 111,557.42

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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.