Home / 120,147.33-165,800.37-66,430.96

Finding the Fourth Proportional to 120,147.33, 165,800.37 and 66,430.96

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Solution

The fourth proportional to 120,147.33, 165,800.37 and 66,430.96 is: 91,673.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,147.33 : 165,800.37 = 66,430.96 : x
  2. Step 2: Convert to fraction form
    120,147.33/165,800.37 = 66,430.96/x
  3. Step 3: Cross multiply
    120,147.33x = 165,800.37 × 66,430.96
  4. Step 4: Simplify right side
    120,147.33x = 11,014,277,747.46
  5. Step 5: Solve for x
    x = 11,014,277,747.46/120,147.33
  6. Step 6: Final answer
    x = 91,673.10

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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.