Home / 109,403.96-150,975.36-61,656.36

Finding the Fourth Proportional to 109,403.96, 150,975.36 and 61,656.36

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Solution

The fourth proportional to 109,403.96, 150,975.36 and 61,656.36 is: 85,084.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,403.96 : 150,975.36 = 61,656.36 : x
  2. Step 2: Convert to fraction form
    109,403.96/150,975.36 = 61,656.36/x
  3. Step 3: Cross multiply
    109,403.96x = 150,975.36 × 61,656.36
  4. Step 4: Simplify right side
    109,403.96x = 9,308,591,147.29
  5. Step 5: Solve for x
    x = 9,308,591,147.29/109,403.96
  6. Step 6: Final answer
    x = 85,084.59

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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.