Home / 120,848.58-166,791.02-100,673.51

Finding the Fourth Proportional to 120,848.58, 166,791.02 and 100,673.51

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Solution

The fourth proportional to 120,848.58, 166,791.02 and 100,673.51 is: 138,946.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,848.58 : 166,791.02 = 100,673.51 : x
  2. Step 2: Convert to fraction form
    120,848.58/166,791.02 = 100,673.51/x
  3. Step 3: Cross multiply
    120,848.58x = 166,791.02 × 100,673.51
  4. Step 4: Simplify right side
    120,848.58x = 16,791,436,082.56
  5. Step 5: Solve for x
    x = 16,791,436,082.56/120,848.58
  6. Step 6: Final answer
    x = 138,946.08

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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.