Home / 209,394.14-288,962.61-113,901.21

Finding the Fourth Proportional to 209,394.14, 288,962.61 and 113,901.21

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Solution

The fourth proportional to 209,394.14, 288,962.61 and 113,901.21 is: 157,182.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,394.14 : 288,962.61 = 113,901.21 : x
  2. Step 2: Convert to fraction form
    209,394.14/288,962.61 = 113,901.21/x
  3. Step 3: Cross multiply
    209,394.14x = 288,962.61 × 113,901.21
  4. Step 4: Simplify right side
    209,394.14x = 32,913,190,496.63
  5. Step 5: Solve for x
    x = 32,913,190,496.63/209,394.14
  6. Step 6: Final answer
    x = 157,182.96

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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.