Home / 120,211.16-165,889.98-66,491.96

Finding the Fourth Proportional to 120,211.16, 165,889.98 and 66,491.96

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Solution

The fourth proportional to 120,211.16, 165,889.98 and 66,491.96 is: 91,758.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,211.16 : 165,889.98 = 66,491.96 : x
  2. Step 2: Convert to fraction form
    120,211.16/165,889.98 = 66,491.96/x
  3. Step 3: Cross multiply
    120,211.16x = 165,889.98 × 66,491.96
  4. Step 4: Simplify right side
    120,211.16x = 11,030,349,914.56
  5. Step 5: Solve for x
    x = 11,030,349,914.56/120,211.16
  6. Step 6: Final answer
    x = 91,758.12

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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.