Home / 161,971.28-243,180.12-111,927.44

Finding the Fourth Proportional to 161,971.28, 243,180.12 and 111,927.44

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Solution

The fourth proportional to 161,971.28, 243,180.12 and 111,927.44 is: 168,045.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,971.28 : 243,180.12 = 111,927.44 : x
  2. Step 2: Convert to fraction form
    161,971.28/243,180.12 = 111,927.44/x
  3. Step 3: Cross multiply
    161,971.28x = 243,180.12 × 111,927.44
  4. Step 4: Simplify right side
    161,971.28x = 27,218,528,290.49
  5. Step 5: Solve for x
    x = 27,218,528,290.49/161,971.28
  6. Step 6: Final answer
    x = 168,045.40

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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.