Home / 105,722.43-145,898.96-57,972.93

Finding the Fourth Proportional to 105,722.43, 145,898.96 and 57,972.93

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Solution

The fourth proportional to 105,722.43, 145,898.96 and 57,972.93 is: 80,003.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,722.43 : 145,898.96 = 57,972.93 : x
  2. Step 2: Convert to fraction form
    105,722.43/145,898.96 = 57,972.93/x
  3. Step 3: Cross multiply
    105,722.43x = 145,898.96 × 57,972.93
  4. Step 4: Simplify right side
    105,722.43x = 8,458,189,905.29
  5. Step 5: Solve for x
    x = 8,458,189,905.29/105,722.43
  6. Step 6: Final answer
    x = 80,003.74

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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.