Home / 95,531.70-143,297.55-86,346.30

Finding the Fourth Proportional to 95,531.70, 143,297.55 and 86,346.30

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Solution

The fourth proportional to 95,531.70, 143,297.55 and 86,346.30 is: 129,519.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,531.70 : 143,297.55 = 86,346.30 : x
  2. Step 2: Convert to fraction form
    95,531.70/143,297.55 = 86,346.30/x
  3. Step 3: Cross multiply
    95,531.70x = 143,297.55 × 86,346.30
  4. Step 4: Simplify right side
    95,531.70x = 12,373,213,241.57
  5. Step 5: Solve for x
    x = 12,373,213,241.57/95,531.70
  6. Step 6: Final answer
    x = 129,519.45

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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.