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Finding the Fourth Proportional to 121,545.57, 167,741.31 and 67,841.07

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Solution

The fourth proportional to 121,545.57, 167,741.31 and 67,841.07 is: 93,625.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,545.57 : 167,741.31 = 67,841.07 : x
  2. Step 2: Convert to fraction form
    121,545.57/167,741.31 = 67,841.07/x
  3. Step 3: Cross multiply
    121,545.57x = 167,741.31 × 67,841.07
  4. Step 4: Simplify right side
    121,545.57x = 11,379,749,953.60
  5. Step 5: Solve for x
    x = 11,379,749,953.60/121,545.57
  6. Step 6: Final answer
    x = 93,625.38

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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.