Home / 109,120.78-163,615.29-42,548.14

Finding the Fourth Proportional to 109,120.78, 163,615.29 and 42,548.14

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Solution

The fourth proportional to 109,120.78, 163,615.29 and 42,548.14 is: 63,796.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,120.78 : 163,615.29 = 42,548.14 : x
  2. Step 2: Convert to fraction form
    109,120.78/163,615.29 = 42,548.14/x
  3. Step 3: Cross multiply
    109,120.78x = 163,615.29 × 42,548.14
  4. Step 4: Simplify right side
    109,120.78x = 6,961,526,265.06
  5. Step 5: Solve for x
    x = 6,961,526,265.06/109,120.78
  6. Step 6: Final answer
    x = 63,796.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.