Home / 209,130.07-288,601.33-113,636.77

Finding the Fourth Proportional to 209,130.07, 288,601.33 and 113,636.77

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Solution

The fourth proportional to 209,130.07, 288,601.33 and 113,636.77 is: 156,819.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,130.07 : 288,601.33 = 113,636.77 : x
  2. Step 2: Convert to fraction form
    209,130.07/288,601.33 = 113,636.77/x
  3. Step 3: Cross multiply
    209,130.07x = 288,601.33 × 113,636.77
  4. Step 4: Simplify right side
    209,130.07x = 32,795,720,947.71
  5. Step 5: Solve for x
    x = 32,795,720,947.71/209,130.07
  6. Step 6: Final answer
    x = 156,819.73

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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.