Home / 155,968.94-215,236.64-84,348.95

Finding the Fourth Proportional to 155,968.94, 215,236.64 and 84,348.95

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Solution

The fourth proportional to 155,968.94, 215,236.64 and 84,348.95 is: 116,401.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,968.94 : 215,236.64 = 84,348.95 : x
  2. Step 2: Convert to fraction form
    155,968.94/215,236.64 = 84,348.95/x
  3. Step 3: Cross multiply
    155,968.94x = 215,236.64 × 84,348.95
  4. Step 4: Simplify right side
    155,968.94x = 18,154,983,720.22
  5. Step 5: Solve for x
    x = 18,154,983,720.22/155,968.94
  6. Step 6: Final answer
    x = 116,401.27

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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.