Home / 117,918.21-162,721.98-64,203.42

Finding the Fourth Proportional to 117,918.21, 162,721.98 and 64,203.42

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Solution

The fourth proportional to 117,918.21, 162,721.98 and 64,203.42 is: 88,597.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,918.21 : 162,721.98 = 64,203.42 : x
  2. Step 2: Convert to fraction form
    117,918.21/162,721.98 = 64,203.42/x
  3. Step 3: Cross multiply
    117,918.21x = 162,721.98 × 64,203.42
  4. Step 4: Simplify right side
    117,918.21x = 10,447,307,625.17
  5. Step 5: Solve for x
    x = 10,447,307,625.17/117,918.21
  6. Step 6: Final answer
    x = 88,597.92

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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.