Home / 213,913.64-295,071.36-137,406.68

Finding the Fourth Proportional to 213,913.64, 295,071.36 and 137,406.68

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Solution

The fourth proportional to 213,913.64, 295,071.36 and 137,406.68 is: 189,538.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,913.64 : 295,071.36 = 137,406.68 : x
  2. Step 2: Convert to fraction form
    213,913.64/295,071.36 = 137,406.68/x
  3. Step 3: Cross multiply
    213,913.64x = 295,071.36 × 137,406.68
  4. Step 4: Simplify right side
    213,913.64x = 40,544,775,940.68
  5. Step 5: Solve for x
    x = 40,544,775,940.68/213,913.64
  6. Step 6: Final answer
    x = 189,538.06

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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.