Home / 107,860.20-161,886.30-63,431.40

Finding the Fourth Proportional to 107,860.20, 161,886.30 and 63,431.40

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Solution

The fourth proportional to 107,860.20, 161,886.30 and 63,431.40 is: 95,203.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,860.20 : 161,886.30 = 63,431.40 : x
  2. Step 2: Convert to fraction form
    107,860.20/161,886.30 = 63,431.40/x
  3. Step 3: Cross multiply
    107,860.20x = 161,886.30 × 63,431.40
  4. Step 4: Simplify right side
    107,860.20x = 10,268,674,649.82
  5. Step 5: Solve for x
    x = 10,268,674,649.82/107,860.20
  6. Step 6: Final answer
    x = 95,203.56

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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.