Home / 107,455.20-161,215.20-57,559.20

Finding the Fourth Proportional to 107,455.20, 161,215.20 and 57,559.20

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Solution

The fourth proportional to 107,455.20, 161,215.20 and 57,559.20 is: 86,356.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,455.20 : 161,215.20 = 57,559.20 : x
  2. Step 2: Convert to fraction form
    107,455.20/161,215.20 = 57,559.20/x
  3. Step 3: Cross multiply
    107,455.20x = 161,215.20 × 57,559.20
  4. Step 4: Simplify right side
    107,455.20x = 9,279,417,939.84
  5. Step 5: Solve for x
    x = 9,279,417,939.84/107,455.20
  6. Step 6: Final answer
    x = 86,356.16

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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.