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Finding the Fourth Proportional to 115,231.50, 159,019.47 and 62,239.50

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Solution

The fourth proportional to 115,231.50, 159,019.47 and 62,239.50 is: 85,890.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,231.50 : 159,019.47 = 62,239.50 : x
  2. Step 2: Convert to fraction form
    115,231.50/159,019.47 = 62,239.50/x
  3. Step 3: Cross multiply
    115,231.50x = 159,019.47 × 62,239.50
  4. Step 4: Simplify right side
    115,231.50x = 9,897,292,303.07
  5. Step 5: Solve for x
    x = 9,897,292,303.07/115,231.50
  6. Step 6: Final answer
    x = 85,890.51

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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.