Home / 209,635.86-289,291.16-116,501.28

Finding the Fourth Proportional to 209,635.86, 289,291.16 and 116,501.28

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Solution

The fourth proportional to 209,635.86, 289,291.16 and 116,501.28 is: 160,768.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,635.86 : 289,291.16 = 116,501.28 : x
  2. Step 2: Convert to fraction form
    209,635.86/289,291.16 = 116,501.28/x
  3. Step 3: Cross multiply
    209,635.86x = 289,291.16 × 116,501.28
  4. Step 4: Simplify right side
    209,635.86x = 33,702,790,432.68
  5. Step 5: Solve for x
    x = 33,702,790,432.68/209,635.86
  6. Step 6: Final answer
    x = 160,768.25

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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.