Home / 209,914.88-289,518.72-134,470.40

Finding the Fourth Proportional to 209,914.88, 289,518.72 and 134,470.40

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Solution

The fourth proportional to 209,914.88, 289,518.72 and 134,470.40 is: 185,464.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,914.88 : 289,518.72 = 134,470.40 : x
  2. Step 2: Convert to fraction form
    209,914.88/289,518.72 = 134,470.40/x
  3. Step 3: Cross multiply
    209,914.88x = 289,518.72 × 134,470.40
  4. Step 4: Simplify right side
    209,914.88x = 38,931,698,085.89
  5. Step 5: Solve for x
    x = 38,931,698,085.89/209,914.88
  6. Step 6: Final answer
    x = 185,464.21

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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.