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Finding the Fourth Proportional to 147,358.07, 203,354.13 and 80,290.07

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Solution

The fourth proportional to 147,358.07, 203,354.13 and 80,290.07 is: 110,800.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,358.07 : 203,354.13 = 80,290.07 : x
  2. Step 2: Convert to fraction form
    147,358.07/203,354.13 = 80,290.07/x
  3. Step 3: Cross multiply
    147,358.07x = 203,354.13 × 80,290.07
  4. Step 4: Simplify right side
    147,358.07x = 16,327,315,914.27
  5. Step 5: Solve for x
    x = 16,327,315,914.27/147,358.07
  6. Step 6: Final answer
    x = 110,800.29

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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.