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Finding the Fourth Proportional to 95,969.70, 143,954.55 and 86,784.30

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Solution

The fourth proportional to 95,969.70, 143,954.55 and 86,784.30 is: 130,176.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,969.70 : 143,954.55 = 86,784.30 : x
  2. Step 2: Convert to fraction form
    95,969.70/143,954.55 = 86,784.30/x
  3. Step 3: Cross multiply
    95,969.70x = 143,954.55 × 86,784.30
  4. Step 4: Simplify right side
    95,969.70x = 12,492,994,853.57
  5. Step 5: Solve for x
    x = 12,492,994,853.57/95,969.70
  6. Step 6: Final answer
    x = 130,176.45

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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.