Home / 141,320.28-212,001.94-87,969.09

Finding the Fourth Proportional to 141,320.28, 212,001.94 and 87,969.09

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Solution

The fourth proportional to 141,320.28, 212,001.94 and 87,969.09 is: 131,967.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,320.28 : 212,001.94 = 87,969.09 : x
  2. Step 2: Convert to fraction form
    141,320.28/212,001.94 = 87,969.09/x
  3. Step 3: Cross multiply
    141,320.28x = 212,001.94 × 87,969.09
  4. Step 4: Simplify right side
    141,320.28x = 18,649,617,740.03
  5. Step 5: Solve for x
    x = 18,649,617,740.03/141,320.28
  6. Step 6: Final answer
    x = 131,967.03

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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.