Home / 110,140.31-165,210.59-30,178.96

Finding the Fourth Proportional to 110,140.31, 165,210.59 and 30,178.96

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Solution

The fourth proportional to 110,140.31, 165,210.59 and 30,178.96 is: 45,268.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,140.31 : 165,210.59 = 30,178.96 : x
  2. Step 2: Convert to fraction form
    110,140.31/165,210.59 = 30,178.96/x
  3. Step 3: Cross multiply
    110,140.31x = 165,210.59 × 30,178.96
  4. Step 4: Simplify right side
    110,140.31x = 4,985,883,449.61
  5. Step 5: Solve for x
    x = 4,985,883,449.61/110,140.31
  6. Step 6: Final answer
    x = 45,268.47

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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.