Home / 120,324.37-166,049.60-65,875.63

Finding the Fourth Proportional to 120,324.37, 166,049.60 and 65,875.63

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Solution

The fourth proportional to 120,324.37, 166,049.60 and 65,875.63 is: 90,909.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,324.37 : 166,049.60 = 65,875.63 : x
  2. Step 2: Convert to fraction form
    120,324.37/166,049.60 = 65,875.63/x
  3. Step 3: Cross multiply
    120,324.37x = 166,049.60 × 65,875.63
  4. Step 4: Simplify right side
    120,324.37x = 10,938,621,681.87
  5. Step 5: Solve for x
    x = 10,938,621,681.87/120,324.37
  6. Step 6: Final answer
    x = 90,909.44

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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.