Home / 120,300.55-166,056.26-69,333.64

Finding the Fourth Proportional to 120,300.55, 166,056.26 and 69,333.64

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Solution

The fourth proportional to 120,300.55, 166,056.26 and 69,333.64 is: 95,704.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,300.55 : 166,056.26 = 69,333.64 : x
  2. Step 2: Convert to fraction form
    120,300.55/166,056.26 = 69,333.64/x
  3. Step 3: Cross multiply
    120,300.55x = 166,056.26 × 69,333.64
  4. Step 4: Simplify right side
    120,300.55x = 11,513,284,950.59
  5. Step 5: Solve for x
    x = 11,513,284,950.59/120,300.55
  6. Step 6: Final answer
    x = 95,704.34

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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.