Home / 231,829.56-319,898.16-129,840.84

Finding the Fourth Proportional to 231,829.56, 319,898.16 and 129,840.84

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Solution

The fourth proportional to 231,829.56, 319,898.16 and 129,840.84 is: 179,165.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,829.56 : 319,898.16 = 129,840.84 : x
  2. Step 2: Convert to fraction form
    231,829.56/319,898.16 = 129,840.84/x
  3. Step 3: Cross multiply
    231,829.56x = 319,898.16 × 129,840.84
  4. Step 4: Simplify right side
    231,829.56x = 41,535,845,808.85
  5. Step 5: Solve for x
    x = 41,535,845,808.85/231,829.56
  6. Step 6: Final answer
    x = 179,165.44

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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.