Home / 117,742.49-162,485.40-64,028.09

Finding the Fourth Proportional to 117,742.49, 162,485.40 and 64,028.09

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Solution

The fourth proportional to 117,742.49, 162,485.40 and 64,028.09 is: 88,359.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,742.49 : 162,485.40 = 64,028.09 : x
  2. Step 2: Convert to fraction form
    117,742.49/162,485.40 = 64,028.09/x
  3. Step 3: Cross multiply
    117,742.49x = 162,485.40 × 64,028.09
  4. Step 4: Simplify right side
    117,742.49x = 10,403,628,682.32
  5. Step 5: Solve for x
    x = 10,403,628,682.32/117,742.49
  6. Step 6: Final answer
    x = 88,359.17

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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.