Home / 155,899.84-214,998.26-102,165.34

Finding the Fourth Proportional to 155,899.84, 214,998.26 and 102,165.34

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Solution

The fourth proportional to 155,899.84, 214,998.26 and 102,165.34 is: 140,894.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,899.84 : 214,998.26 = 102,165.34 : x
  2. Step 2: Convert to fraction form
    155,899.84/214,998.26 = 102,165.34/x
  3. Step 3: Cross multiply
    155,899.84x = 214,998.26 × 102,165.34
  4. Step 4: Simplify right side
    155,899.84x = 21,965,370,332.31
  5. Step 5: Solve for x
    x = 21,965,370,332.31/155,899.84
  6. Step 6: Final answer
    x = 140,894.12

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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.