Home / 209,182.19-288,673.67-113,688.90

Finding the Fourth Proportional to 209,182.19, 288,673.67 and 113,688.90

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Solution

The fourth proportional to 209,182.19, 288,673.67 and 113,688.90 is: 156,891.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,182.19 : 288,673.67 = 113,688.90 : x
  2. Step 2: Convert to fraction form
    209,182.19/288,673.67 = 113,688.90/x
  3. Step 3: Cross multiply
    209,182.19x = 288,673.67 × 113,688.90
  4. Step 4: Simplify right side
    209,182.19x = 32,818,992,285.49
  5. Step 5: Solve for x
    x = 32,818,992,285.49/209,182.19
  6. Step 6: Final answer
    x = 156,891.91

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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.