Home / 211,361.76-291,681.54-115,866.36

Finding the Fourth Proportional to 211,361.76, 291,681.54 and 115,866.36

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Solution

The fourth proportional to 211,361.76, 291,681.54 and 115,866.36 is: 159,896.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,361.76 : 291,681.54 = 115,866.36 : x
  2. Step 2: Convert to fraction form
    211,361.76/291,681.54 = 115,866.36/x
  3. Step 3: Cross multiply
    211,361.76x = 291,681.54 × 115,866.36
  4. Step 4: Simplify right side
    211,361.76x = 33,796,078,318.99
  5. Step 5: Solve for x
    x = 33,796,078,318.99/211,361.76
  6. Step 6: Final answer
    x = 159,896.84

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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.