Home / 105,630.12-158,471.12-30,750.92

Finding the Fourth Proportional to 105,630.12, 158,471.12 and 30,750.92

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Solution

The fourth proportional to 105,630.12, 158,471.12 and 30,750.92 is: 46,133.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,630.12 : 158,471.12 = 30,750.92 : x
  2. Step 2: Convert to fraction form
    105,630.12/158,471.12 = 30,750.92/x
  3. Step 3: Cross multiply
    105,630.12x = 158,471.12 × 30,750.92
  4. Step 4: Simplify right side
    105,630.12x = 4,873,132,733.43
  5. Step 5: Solve for x
    x = 4,873,132,733.43/105,630.12
  6. Step 6: Final answer
    x = 46,133.93

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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.