Home / 209,186.46-288,677.25-113,693.40

Finding the Fourth Proportional to 209,186.46, 288,677.25 and 113,693.40

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Solution

The fourth proportional to 209,186.46, 288,677.25 and 113,693.40 is: 156,896.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,186.46 : 288,677.25 = 113,693.40 : x
  2. Step 2: Convert to fraction form
    209,186.46/288,677.25 = 113,693.40/x
  3. Step 3: Cross multiply
    209,186.46x = 288,677.25 × 113,693.40
  4. Step 4: Simplify right side
    209,186.46x = 32,820,698,055.15
  5. Step 5: Solve for x
    x = 32,820,698,055.15/209,186.46
  6. Step 6: Final answer
    x = 156,896.86

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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.