Home / 158,736.68-219,059.26-87,123.36

Finding the Fourth Proportional to 158,736.68, 219,059.26 and 87,123.36

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Solution

The fourth proportional to 158,736.68, 219,059.26 and 87,123.36 is: 120,231.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,736.68 : 219,059.26 = 87,123.36 : x
  2. Step 2: Convert to fraction form
    158,736.68/219,059.26 = 87,123.36/x
  3. Step 3: Cross multiply
    158,736.68x = 219,059.26 × 87,123.36
  4. Step 4: Simplify right side
    158,736.68x = 19,085,178,770.31
  5. Step 5: Solve for x
    x = 19,085,178,770.31/158,736.68
  6. Step 6: Final answer
    x = 120,231.69

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1.5x scale

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.