Home / 120,376.40-166,105.28-69,388.52

Finding the Fourth Proportional to 120,376.40, 166,105.28 and 69,388.52

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Solution

The fourth proportional to 120,376.40, 166,105.28 and 69,388.52 is: 95,748.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,376.40 : 166,105.28 = 69,388.52 : x
  2. Step 2: Convert to fraction form
    120,376.40/166,105.28 = 69,388.52/x
  3. Step 3: Cross multiply
    120,376.40x = 166,105.28 × 69,388.52
  4. Step 4: Simplify right side
    120,376.40x = 11,525,798,886.33
  5. Step 5: Solve for x
    x = 11,525,798,886.33/120,376.40
  6. Step 6: Final answer
    x = 95,748.00

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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.