Home / 120,356.01-166,097.03-72,608.36

Finding the Fourth Proportional to 120,356.01, 166,097.03 and 72,608.36

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Solution

The fourth proportional to 120,356.01, 166,097.03 and 72,608.36 is: 100,202.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,356.01 : 166,097.03 = 72,608.36 : x
  2. Step 2: Convert to fraction form
    120,356.01/166,097.03 = 72,608.36/x
  3. Step 3: Cross multiply
    120,356.01x = 166,097.03 × 72,608.36
  4. Step 4: Simplify right side
    120,356.01x = 12,060,031,755.64
  5. Step 5: Solve for x
    x = 12,060,031,755.64/120,356.01
  6. Step 6: Final answer
    x = 100,202.99

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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.