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Finding the Fourth Proportional to 95,447.40, 143,171.10 and 86,699.40

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Solution

The fourth proportional to 95,447.40, 143,171.10 and 86,699.40 is: 130,049.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,447.40 : 143,171.10 = 86,699.40 : x
  2. Step 2: Convert to fraction form
    95,447.40/143,171.10 = 86,699.40/x
  3. Step 3: Cross multiply
    95,447.40x = 143,171.10 × 86,699.40
  4. Step 4: Simplify right side
    95,447.40x = 12,412,848,467.34
  5. Step 5: Solve for x
    x = 12,412,848,467.34/95,447.40
  6. Step 6: Final answer
    x = 130,049.10

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1.5x scale

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.