Home / 133,146.28-183,743.08-75,782.76

Finding the Fourth Proportional to 133,146.28, 183,743.08 and 75,782.76

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Solution

The fourth proportional to 133,146.28, 183,743.08 and 75,782.76 is: 104,580.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,146.28 : 183,743.08 = 75,782.76 : x
  2. Step 2: Convert to fraction form
    133,146.28/183,743.08 = 75,782.76/x
  3. Step 3: Cross multiply
    133,146.28x = 183,743.08 × 75,782.76
  4. Step 4: Simplify right side
    133,146.28x = 13,924,557,733.30
  5. Step 5: Solve for x
    x = 13,924,557,733.30/133,146.28
  6. Step 6: Final answer
    x = 104,580.90

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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.