Home / 126,521.24-189,729.64-51,590.60

Finding the Fourth Proportional to 126,521.24, 189,729.64 and 51,590.60

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Solution

The fourth proportional to 126,521.24, 189,729.64 and 51,590.60 is: 77,364.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,521.24 : 189,729.64 = 51,590.60 : x
  2. Step 2: Convert to fraction form
    126,521.24/189,729.64 = 51,590.60/x
  3. Step 3: Cross multiply
    126,521.24x = 189,729.64 × 51,590.60
  4. Step 4: Simplify right side
    126,521.24x = 9,788,265,965.38
  5. Step 5: Solve for x
    x = 9,788,265,965.38/126,521.24
  6. Step 6: Final answer
    x = 77,364.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.