Home / 161,228.32-221,907.81-141,982.09

Finding the Fourth Proportional to 161,228.32, 221,907.81 and 141,982.09

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Solution

The fourth proportional to 161,228.32, 221,907.81 and 141,982.09 is: 195,418.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,228.32 : 221,907.81 = 141,982.09 : x
  2. Step 2: Convert to fraction form
    161,228.32/221,907.81 = 141,982.09/x
  3. Step 3: Cross multiply
    161,228.32x = 221,907.81 × 141,982.09
  4. Step 4: Simplify right side
    161,228.32x = 31,506,934,651.12
  5. Step 5: Solve for x
    x = 31,506,934,651.12/161,228.32
  6. Step 6: Final answer
    x = 195,418.12

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1.5x scale

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.