Home / 141,839.40-212,564.70-100,237.80

Finding the Fourth Proportional to 141,839.40, 212,564.70 and 100,237.80

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Solution

The fourth proportional to 141,839.40, 212,564.70 and 100,237.80 is: 150,219.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,839.40 : 212,564.70 = 100,237.80 : x
  2. Step 2: Convert to fraction form
    141,839.40/212,564.70 = 100,237.80/x
  3. Step 3: Cross multiply
    141,839.40x = 212,564.70 × 100,237.80
  4. Step 4: Simplify right side
    141,839.40x = 21,307,017,885.66
  5. Step 5: Solve for x
    x = 21,307,017,885.66/141,839.40
  6. Step 6: Final answer
    x = 150,219.32

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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.