Home / 209,573.31-314,183.63-91,155.46

Finding the Fourth Proportional to 209,573.31, 314,183.63 and 91,155.46

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Solution

The fourth proportional to 209,573.31, 314,183.63 and 91,155.46 is: 136,656.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,573.31 : 314,183.63 = 91,155.46 : x
  2. Step 2: Convert to fraction form
    209,573.31/314,183.63 = 91,155.46/x
  3. Step 3: Cross multiply
    209,573.31x = 314,183.63 × 91,155.46
  4. Step 4: Simplify right side
    209,573.31x = 28,639,553,317.12
  5. Step 5: Solve for x
    x = 28,639,553,317.12/209,573.31
  6. Step 6: Final answer
    x = 136,656.49

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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.