Home / 209,877.06-289,621.88-114,381.70

Finding the Fourth Proportional to 209,877.06, 289,621.88 and 114,381.70

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Solution

The fourth proportional to 209,877.06, 289,621.88 and 114,381.70 is: 157,842.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,877.06 : 289,621.88 = 114,381.70 : x
  2. Step 2: Convert to fraction form
    209,877.06/289,621.88 = 114,381.70/x
  3. Step 3: Cross multiply
    209,877.06x = 289,621.88 × 114,381.70
  4. Step 4: Simplify right side
    209,877.06x = 33,127,442,991.60
  5. Step 5: Solve for x
    x = 33,127,442,991.60/209,877.06
  6. Step 6: Final answer
    x = 157,842.13

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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.