Home / 141,428.43-195,174.54-76,901.34

Finding the Fourth Proportional to 141,428.43, 195,174.54 and 76,901.34

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Solution

The fourth proportional to 141,428.43, 195,174.54 and 76,901.34 is: 106,125.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,428.43 : 195,174.54 = 76,901.34 : x
  2. Step 2: Convert to fraction form
    141,428.43/195,174.54 = 76,901.34/x
  3. Step 3: Cross multiply
    141,428.43x = 195,174.54 × 76,901.34
  4. Step 4: Simplify right side
    141,428.43x = 15,009,183,659.88
  5. Step 5: Solve for x
    x = 15,009,183,659.88/141,428.43
  6. Step 6: Final answer
    x = 106,125.65

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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.