Home / 161,914.71-223,366.08-105,305.43

Finding the Fourth Proportional to 161,914.71, 223,366.08 and 105,305.43

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Solution

The fourth proportional to 161,914.71, 223,366.08 and 105,305.43 is: 145,271.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,914.71 : 223,366.08 = 105,305.43 : x
  2. Step 2: Convert to fraction form
    161,914.71/223,366.08 = 105,305.43/x
  3. Step 3: Cross multiply
    161,914.71x = 223,366.08 × 105,305.43
  4. Step 4: Simplify right side
    161,914.71x = 23,521,661,101.81
  5. Step 5: Solve for x
    x = 23,521,661,101.81/161,914.71
  6. Step 6: Final answer
    x = 145,271.92

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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.