Home / 120,848.83-166,791.36-100,673.76

Finding the Fourth Proportional to 120,848.83, 166,791.36 and 100,673.76

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Solution

The fourth proportional to 120,848.83, 166,791.36 and 100,673.76 is: 138,946.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,848.83 : 166,791.36 = 100,673.76 : x
  2. Step 2: Convert to fraction form
    120,848.83/166,791.36 = 100,673.76/x
  3. Step 3: Cross multiply
    120,848.83x = 166,791.36 × 100,673.76
  4. Step 4: Simplify right side
    120,848.83x = 16,791,512,512.76
  5. Step 5: Solve for x
    x = 16,791,512,512.76/120,848.83
  6. Step 6: Final answer
    x = 138,946.42

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1.5x scale

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.