Home / 209,320.96-288,866.64-113,827.36

Finding the Fourth Proportional to 209,320.96, 288,866.64 and 113,827.36

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Solution

The fourth proportional to 209,320.96, 288,866.64 and 113,827.36 is: 157,083.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,320.96 : 288,866.64 = 113,827.36 : x
  2. Step 2: Convert to fraction form
    209,320.96/288,866.64 = 113,827.36/x
  3. Step 3: Cross multiply
    209,320.96x = 288,866.64 × 113,827.36
  4. Step 4: Simplify right side
    209,320.96x = 32,880,927,023.27
  5. Step 5: Solve for x
    x = 32,880,927,023.27/209,320.96
  6. Step 6: Final answer
    x = 157,083.78

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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.