Home / 120,729.16-166,598.34-67,011.56

Finding the Fourth Proportional to 120,729.16, 166,598.34 and 67,011.56

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Solution

The fourth proportional to 120,729.16, 166,598.34 and 67,011.56 is: 92,471.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,729.16 : 166,598.34 = 67,011.56 : x
  2. Step 2: Convert to fraction form
    120,729.16/166,598.34 = 67,011.56/x
  3. Step 3: Cross multiply
    120,729.16x = 166,598.34 × 67,011.56
  4. Step 4: Simplify right side
    120,729.16x = 11,164,014,656.81
  5. Step 5: Solve for x
    x = 11,164,014,656.81/120,729.16
  6. Step 6: Final answer
    x = 92,471.57

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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.