Home / 120,657.36-166,499.64-72,882.48

Finding the Fourth Proportional to 120,657.36, 166,499.64 and 72,882.48

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Solution

The fourth proportional to 120,657.36, 166,499.64 and 72,882.48 is: 100,573.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,657.36 : 166,499.64 = 72,882.48 : x
  2. Step 2: Convert to fraction form
    120,657.36/166,499.64 = 72,882.48/x
  3. Step 3: Cross multiply
    120,657.36x = 166,499.64 × 72,882.48
  4. Step 4: Simplify right side
    120,657.36x = 12,134,906,682.31
  5. Step 5: Solve for x
    x = 12,134,906,682.31/120,657.36
  6. Step 6: Final answer
    x = 100,573.28

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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.