Home / 209,299.64-288,831.51-113,806.40

Finding the Fourth Proportional to 209,299.64, 288,831.51 and 113,806.40

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Solution

The fourth proportional to 209,299.64, 288,831.51 and 113,806.40 is: 157,051.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,299.64 : 288,831.51 = 113,806.40 : x
  2. Step 2: Convert to fraction form
    209,299.64/288,831.51 = 113,806.40/x
  3. Step 3: Cross multiply
    209,299.64x = 288,831.51 × 113,806.40
  4. Step 4: Simplify right side
    209,299.64x = 32,870,872,915.51
  5. Step 5: Solve for x
    x = 32,870,872,915.51/209,299.64
  6. Step 6: Final answer
    x = 157,051.75

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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.