Home / 151,941.70-209,636.82-87,407.56

Finding the Fourth Proportional to 151,941.70, 209,636.82 and 87,407.56

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Solution

The fourth proportional to 151,941.70, 209,636.82 and 87,407.56 is: 120,597.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,941.70 : 209,636.82 = 87,407.56 : x
  2. Step 2: Convert to fraction form
    151,941.70/209,636.82 = 87,407.56/x
  3. Step 3: Cross multiply
    151,941.70x = 209,636.82 × 87,407.56
  4. Step 4: Simplify right side
    151,941.70x = 18,323,842,922.36
  5. Step 5: Solve for x
    x = 18,323,842,922.36/151,941.70
  6. Step 6: Final answer
    x = 120,597.85

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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.