Home / 193,482.90-290,336.46-81,153.12

Finding the Fourth Proportional to 193,482.90, 290,336.46 and 81,153.12

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Solution

The fourth proportional to 193,482.90, 290,336.46 and 81,153.12 is: 121,776.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,482.90 : 290,336.46 = 81,153.12 : x
  2. Step 2: Convert to fraction form
    193,482.90/290,336.46 = 81,153.12/x
  3. Step 3: Cross multiply
    193,482.90x = 290,336.46 × 81,153.12
  4. Step 4: Simplify right side
    193,482.90x = 23,561,709,578.76
  5. Step 5: Solve for x
    x = 23,561,709,578.76/193,482.90
  6. Step 6: Final answer
    x = 121,776.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.