Home / 120,326.64-166,045.38-66,607.86

Finding the Fourth Proportional to 120,326.64, 166,045.38 and 66,607.86

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Solution

The fourth proportional to 120,326.64, 166,045.38 and 66,607.86 is: 91,915.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,326.64 : 166,045.38 = 66,607.86 : x
  2. Step 2: Convert to fraction form
    120,326.64/166,045.38 = 66,607.86/x
  3. Step 3: Cross multiply
    120,326.64x = 166,045.38 × 66,607.86
  4. Step 4: Simplify right side
    120,326.64x = 11,059,927,424.69
  5. Step 5: Solve for x
    x = 11,059,927,424.69/120,326.64
  6. Step 6: Final answer
    x = 91,915.87

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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.