Home / 209,182.76-288,672.23-113,689.45

Finding the Fourth Proportional to 209,182.76, 288,672.23 and 113,689.45

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Solution

The fourth proportional to 209,182.76, 288,672.23 and 113,689.45 is: 156,891.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,182.76 : 288,672.23 = 113,689.45 : x
  2. Step 2: Convert to fraction form
    209,182.76/288,672.23 = 113,689.45/x
  3. Step 3: Cross multiply
    209,182.76x = 288,672.23 × 113,689.45
  4. Step 4: Simplify right side
    209,182.76x = 32,818,986,621.52
  5. Step 5: Solve for x
    x = 32,818,986,621.52/209,182.76
  6. Step 6: Final answer
    x = 156,891.45

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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.