Home / 121,205.52-181,820.72-46,388.60

Finding the Fourth Proportional to 121,205.52, 181,820.72 and 46,388.60

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Solution

The fourth proportional to 121,205.52, 181,820.72 and 46,388.60 is: 69,587.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,205.52 : 181,820.72 = 46,388.60 : x
  2. Step 2: Convert to fraction form
    121,205.52/181,820.72 = 46,388.60/x
  3. Step 3: Cross multiply
    121,205.52x = 181,820.72 × 46,388.60
  4. Step 4: Simplify right side
    121,205.52x = 8,434,408,651.79
  5. Step 5: Solve for x
    x = 8,434,408,651.79/121,205.52
  6. Step 6: Final answer
    x = 69,587.66

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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.