Home / 209,178.42-288,668.13-113,685.36

Finding the Fourth Proportional to 209,178.42, 288,668.13 and 113,685.36

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Solution

The fourth proportional to 209,178.42, 288,668.13 and 113,685.36 is: 156,886.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,178.42 : 288,668.13 = 113,685.36 : x
  2. Step 2: Convert to fraction form
    209,178.42/288,668.13 = 113,685.36/x
  3. Step 3: Cross multiply
    209,178.42x = 288,668.13 × 113,685.36
  4. Step 4: Simplify right side
    209,178.42x = 32,817,340,279.58
  5. Step 5: Solve for x
    x = 32,817,340,279.58/209,178.42
  6. Step 6: Final answer
    x = 156,886.84

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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.