Home / 209,175.08-288,663.84-113,681.78

Finding the Fourth Proportional to 209,175.08, 288,663.84 and 113,681.78

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Solution

The fourth proportional to 209,175.08, 288,663.84 and 113,681.78 is: 156,882.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,175.08 : 288,663.84 = 113,681.78 : x
  2. Step 2: Convert to fraction form
    209,175.08/288,663.84 = 113,681.78/x
  3. Step 3: Cross multiply
    209,175.08x = 288,663.84 × 113,681.78
  4. Step 4: Simplify right side
    209,175.08x = 32,815,819,152.84
  5. Step 5: Solve for x
    x = 32,815,819,152.84/209,175.08
  6. Step 6: Final answer
    x = 156,882.07

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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.