Home / 152,129.34-227,900.79-85,365.90

Finding the Fourth Proportional to 152,129.34, 227,900.79 and 85,365.90

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Solution

The fourth proportional to 152,129.34, 227,900.79 and 85,365.90 is: 127,884.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,129.34 : 227,900.79 = 85,365.90 : x
  2. Step 2: Convert to fraction form
    152,129.34/227,900.79 = 85,365.90/x
  3. Step 3: Cross multiply
    152,129.34x = 227,900.79 × 85,365.90
  4. Step 4: Simplify right side
    152,129.34x = 19,454,956,049.06
  5. Step 5: Solve for x
    x = 19,454,956,049.06/152,129.34
  6. Step 6: Final answer
    x = 127,884.31

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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.