Home / 209,632.77-289,334.18-133,240.86

Finding the Fourth Proportional to 209,632.77, 289,334.18 and 133,240.86

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Solution

The fourth proportional to 209,632.77, 289,334.18 and 133,240.86 is: 183,898.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,632.77 : 289,334.18 = 133,240.86 : x
  2. Step 2: Convert to fraction form
    209,632.77/289,334.18 = 133,240.86/x
  3. Step 3: Cross multiply
    209,632.77x = 289,334.18 × 133,240.86
  4. Step 4: Simplify right side
    209,632.77x = 38,551,135,303.70
  5. Step 5: Solve for x
    x = 38,551,135,303.70/209,632.77
  6. Step 6: Final answer
    x = 183,898.42

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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.