Home / 121,455.45-167,608.80-67,743.93

Finding the Fourth Proportional to 121,455.45, 167,608.80 and 67,743.93

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Solution

The fourth proportional to 121,455.45, 167,608.80 and 67,743.93 is: 93,486.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,455.45 : 167,608.80 = 67,743.93 : x
  2. Step 2: Convert to fraction form
    121,455.45/167,608.80 = 67,743.93/x
  3. Step 3: Cross multiply
    121,455.45x = 167,608.80 × 67,743.93
  4. Step 4: Simplify right side
    121,455.45x = 11,354,478,814.58
  5. Step 5: Solve for x
    x = 11,354,478,814.58/121,455.45
  6. Step 6: Final answer
    x = 93,486.78

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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.