Home / 155,365.20-214,377.48-87,364.56

Finding the Fourth Proportional to 155,365.20, 214,377.48 and 87,364.56

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Solution

The fourth proportional to 155,365.20, 214,377.48 and 87,364.56 is: 120,548.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,365.20 : 214,377.48 = 87,364.56 : x
  2. Step 2: Convert to fraction form
    155,365.20/214,377.48 = 87,364.56/x
  3. Step 3: Cross multiply
    155,365.20x = 214,377.48 × 87,364.56
  4. Step 4: Simplify right side
    155,365.20x = 18,728,994,214.11
  5. Step 5: Solve for x
    x = 18,728,994,214.11/155,365.20
  6. Step 6: Final answer
    x = 120,548.19

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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.