Home / 209,129.32-288,600.28-113,636.02

Finding the Fourth Proportional to 209,129.32, 288,600.28 and 113,636.02

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Solution

The fourth proportional to 209,129.32, 288,600.28 and 113,636.02 is: 156,818.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,129.32 : 288,600.28 = 113,636.02 : x
  2. Step 2: Convert to fraction form
    209,129.32/288,600.28 = 113,636.02/x
  3. Step 3: Cross multiply
    209,129.32x = 288,600.28 × 113,636.02
  4. Step 4: Simplify right side
    209,129.32x = 32,795,387,190.09
  5. Step 5: Solve for x
    x = 32,795,387,190.09/209,129.32
  6. Step 6: Final answer
    x = 156,818.70

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1.5x scale

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.