Home / 105,913.45-158,871.48-31,035.12

Finding the Fourth Proportional to 105,913.45, 158,871.48 and 31,035.12

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Solution

The fourth proportional to 105,913.45, 158,871.48 and 31,035.12 is: 46,553.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,913.45 : 158,871.48 = 31,035.12 : x
  2. Step 2: Convert to fraction form
    105,913.45/158,871.48 = 31,035.12/x
  3. Step 3: Cross multiply
    105,913.45x = 158,871.48 × 31,035.12
  4. Step 4: Simplify right side
    105,913.45x = 4,930,596,074.71
  5. Step 5: Solve for x
    x = 4,930,596,074.71/105,913.45
  6. Step 6: Final answer
    x = 46,553.07

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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.