Home / 120,505.56-166,307.63-66,807.42

Finding the Fourth Proportional to 120,505.56, 166,307.63 and 66,807.42

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Solution

The fourth proportional to 120,505.56, 166,307.63 and 66,807.42 is: 92,199.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,505.56 : 166,307.63 = 66,807.42 : x
  2. Step 2: Convert to fraction form
    120,505.56/166,307.63 = 66,807.42/x
  3. Step 3: Cross multiply
    120,505.56x = 166,307.63 × 66,807.42
  4. Step 4: Simplify right side
    120,505.56x = 11,110,583,352.58
  5. Step 5: Solve for x
    x = 11,110,583,352.58/120,505.56
  6. Step 6: Final answer
    x = 92,199.76

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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.