Home / 112,288.35-154,984.61-72,097.36

Finding the Fourth Proportional to 112,288.35, 154,984.61 and 72,097.36

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Solution

The fourth proportional to 112,288.35, 154,984.61 and 72,097.36 is: 99,511.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,288.35 : 154,984.61 = 72,097.36 : x
  2. Step 2: Convert to fraction form
    112,288.35/154,984.61 = 72,097.36/x
  3. Step 3: Cross multiply
    112,288.35x = 154,984.61 × 72,097.36
  4. Step 4: Simplify right side
    112,288.35x = 11,173,981,221.63
  5. Step 5: Solve for x
    x = 11,173,981,221.63/112,288.35
  6. Step 6: Final answer
    x = 99,511.49

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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.