Home / 209,068.09-288,514.31-113,574.86

Finding the Fourth Proportional to 209,068.09, 288,514.31 and 113,574.86

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Solution

The fourth proportional to 209,068.09, 288,514.31 and 113,574.86 is: 156,733.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,068.09 : 288,514.31 = 113,574.86 : x
  2. Step 2: Convert to fraction form
    209,068.09/288,514.31 = 113,574.86/x
  3. Step 3: Cross multiply
    209,068.09x = 288,514.31 × 113,574.86
  4. Step 4: Simplify right side
    209,068.09x = 32,767,971,437.73
  5. Step 5: Solve for x
    x = 32,767,971,437.73/209,068.09
  6. Step 6: Final answer
    x = 156,733.49

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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.