Home / 120,023.50-165,632.43-69,725.74

Finding the Fourth Proportional to 120,023.50, 165,632.43 and 69,725.74

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Solution

The fourth proportional to 120,023.50, 165,632.43 and 69,725.74 is: 96,221.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,023.50 : 165,632.43 = 69,725.74 : x
  2. Step 2: Convert to fraction form
    120,023.50/165,632.43 = 69,725.74/x
  3. Step 3: Cross multiply
    120,023.50x = 165,632.43 × 69,725.74
  4. Step 4: Simplify right side
    120,023.50x = 11,548,843,749.75
  5. Step 5: Solve for x
    x = 11,548,843,749.75/120,023.50
  6. Step 6: Final answer
    x = 96,221.52

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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.