Home / 107,558.20-161,726.10-105,225.40

Finding the Fourth Proportional to 107,558.20, 161,726.10 and 105,225.40

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Solution

The fourth proportional to 107,558.20, 161,726.10 and 105,225.40 is: 158,218.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,558.20 : 161,726.10 = 105,225.40 : x
  2. Step 2: Convert to fraction form
    107,558.20/161,726.10 = 105,225.40/x
  3. Step 3: Cross multiply
    107,558.20x = 161,726.10 × 105,225.40
  4. Step 4: Simplify right side
    107,558.20x = 17,017,693,562.94
  5. Step 5: Solve for x
    x = 17,017,693,562.94/107,558.20
  6. Step 6: Final answer
    x = 158,218.47

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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.