Home / 209,245.39-288,487.60-135,526.66

Finding the Fourth Proportional to 209,245.39, 288,487.60 and 135,526.66

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Solution

The fourth proportional to 209,245.39, 288,487.60 and 135,526.66 is: 186,851.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,245.39 : 288,487.60 = 135,526.66 : x
  2. Step 2: Convert to fraction form
    209,245.39/288,487.60 = 135,526.66/x
  3. Step 3: Cross multiply
    209,245.39x = 288,487.60 × 135,526.66
  4. Step 4: Simplify right side
    209,245.39x = 39,097,760,879.42
  5. Step 5: Solve for x
    x = 39,097,760,879.42/209,245.39
  6. Step 6: Final answer
    x = 186,851.24

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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.