Home / 112,419.37-168,712.20-53,255.17

Finding the Fourth Proportional to 112,419.37, 168,712.20 and 53,255.17

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Solution

The fourth proportional to 112,419.37, 168,712.20 and 53,255.17 is: 79,922.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,419.37 : 168,712.20 = 53,255.17 : x
  2. Step 2: Convert to fraction form
    112,419.37/168,712.20 = 53,255.17/x
  3. Step 3: Cross multiply
    112,419.37x = 168,712.20 × 53,255.17
  4. Step 4: Simplify right side
    112,419.37x = 8,984,796,892.07
  5. Step 5: Solve for x
    x = 8,984,796,892.07/112,419.37
  6. Step 6: Final answer
    x = 79,922.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.