Home / 231,979.52-320,116.58-136,467.76

Finding the Fourth Proportional to 231,979.52, 320,116.58 and 136,467.76

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Solution

The fourth proportional to 231,979.52, 320,116.58 and 136,467.76 is: 188,316.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,979.52 : 320,116.58 = 136,467.76 : x
  2. Step 2: Convert to fraction form
    231,979.52/320,116.58 = 136,467.76/x
  3. Step 3: Cross multiply
    231,979.52x = 320,116.58 × 136,467.76
  4. Step 4: Simplify right side
    231,979.52x = 43,685,592,611.46
  5. Step 5: Solve for x
    x = 43,685,592,611.46/231,979.52
  6. Step 6: Final answer
    x = 188,316.59

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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.