Home / 193,493.90-290,293.45-81,115.10

Finding the Fourth Proportional to 193,493.90, 290,293.45 and 81,115.10

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Solution

The fourth proportional to 193,493.90, 290,293.45 and 81,115.10 is: 121,694.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,493.90 : 290,293.45 = 81,115.10 : x
  2. Step 2: Convert to fraction form
    193,493.90/290,293.45 = 81,115.10/x
  3. Step 3: Cross multiply
    193,493.90x = 290,293.45 × 81,115.10
  4. Step 4: Simplify right side
    193,493.90x = 23,547,182,226.10
  5. Step 5: Solve for x
    x = 23,547,182,226.10/193,493.90
  6. Step 6: Final answer
    x = 121,694.70

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1.5x scale

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.