Home / 115,361.22-159,179.40-77,059.32

Finding the Fourth Proportional to 115,361.22, 159,179.40 and 77,059.32

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Solution

The fourth proportional to 115,361.22, 159,179.40 and 77,059.32 is: 106,329.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,361.22 : 159,179.40 = 77,059.32 : x
  2. Step 2: Convert to fraction form
    115,361.22/159,179.40 = 77,059.32/x
  3. Step 3: Cross multiply
    115,361.22x = 159,179.40 × 77,059.32
  4. Step 4: Simplify right side
    115,361.22x = 12,266,256,322.01
  5. Step 5: Solve for x
    x = 12,266,256,322.01/115,361.22
  6. Step 6: Final answer
    x = 106,329.11

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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.