Home / 141,531.48-195,321.58-77,870.84

Finding the Fourth Proportional to 141,531.48, 195,321.58 and 77,870.84

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Solution

The fourth proportional to 141,531.48, 195,321.58 and 77,870.84 is: 107,466.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,531.48 : 195,321.58 = 77,870.84 : x
  2. Step 2: Convert to fraction form
    141,531.48/195,321.58 = 77,870.84/x
  3. Step 3: Cross multiply
    141,531.48x = 195,321.58 × 77,870.84
  4. Step 4: Simplify right side
    141,531.48x = 15,209,855,504.73
  5. Step 5: Solve for x
    x = 15,209,855,504.73/141,531.48
  6. Step 6: Final answer
    x = 107,466.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.