Home / 209,864.19-289,612.08-114,370.64

Finding the Fourth Proportional to 209,864.19, 289,612.08 and 114,370.64

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Solution

The fourth proportional to 209,864.19, 289,612.08 and 114,370.64 is: 157,831.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,864.19 : 289,612.08 = 114,370.64 : x
  2. Step 2: Convert to fraction form
    209,864.19/289,612.08 = 114,370.64/x
  3. Step 3: Cross multiply
    209,864.19x = 289,612.08 × 114,370.64
  4. Step 4: Simplify right side
    209,864.19x = 33,123,117,493.27
  5. Step 5: Solve for x
    x = 33,123,117,493.27/209,864.19
  6. Step 6: Final answer
    x = 157,831.20

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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.