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Finding the Fourth Proportional to 134,693.20, 202,039.80 and 45,917.20

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Solution

The fourth proportional to 134,693.20, 202,039.80 and 45,917.20 is: 68,875.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,693.20 : 202,039.80 = 45,917.20 : x
  2. Step 2: Convert to fraction form
    134,693.20/202,039.80 = 45,917.20/x
  3. Step 3: Cross multiply
    134,693.20x = 202,039.80 × 45,917.20
  4. Step 4: Simplify right side
    134,693.20x = 9,277,101,904.56
  5. Step 5: Solve for x
    x = 9,277,101,904.56/134,693.20
  6. Step 6: Final answer
    x = 68,875.80

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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.