Home / 116,684.18-161,021.48-71,362.66

Finding the Fourth Proportional to 116,684.18, 161,021.48 and 71,362.66

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Solution

The fourth proportional to 116,684.18, 161,021.48 and 71,362.66 is: 98,478.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,684.18 : 161,021.48 = 71,362.66 : x
  2. Step 2: Convert to fraction form
    116,684.18/161,021.48 = 71,362.66/x
  3. Step 3: Cross multiply
    116,684.18x = 161,021.48 × 71,362.66
  4. Step 4: Simplify right side
    116,684.18x = 11,490,921,129.94
  5. Step 5: Solve for x
    x = 11,490,921,129.94/116,684.18
  6. Step 6: Final answer
    x = 98,478.83

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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.