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Finding the Fourth Proportional to 161,650.96, 223,085.21 and 90,030.98

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Solution

The fourth proportional to 161,650.96, 223,085.21 and 90,030.98 is: 124,246.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,650.96 : 223,085.21 = 90,030.98 : x
  2. Step 2: Convert to fraction form
    161,650.96/223,085.21 = 90,030.98/x
  3. Step 3: Cross multiply
    161,650.96x = 223,085.21 × 90,030.98
  4. Step 4: Simplify right side
    161,650.96x = 20,084,580,187.36
  5. Step 5: Solve for x
    x = 20,084,580,187.36/161,650.96
  6. Step 6: Final answer
    x = 124,246.59

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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.