Home / 86,609.42-119,427.32-75,180.98

Finding the Fourth Proportional to 86,609.42, 119,427.32 and 75,180.98

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Solution

The fourth proportional to 86,609.42, 119,427.32 and 75,180.98 is: 103,668.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,609.42 : 119,427.32 = 75,180.98 : x
  2. Step 2: Convert to fraction form
    86,609.42/119,427.32 = 75,180.98/x
  3. Step 3: Cross multiply
    86,609.42x = 119,427.32 × 75,180.98
  4. Step 4: Simplify right side
    86,609.42x = 8,978,662,956.37
  5. Step 5: Solve for x
    x = 8,978,662,956.37/86,609.42
  6. Step 6: Final answer
    x = 103,668.43

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1.5x scale

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.