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Finding the Fourth Proportional to 115,341.93, 159,171.89 and 65,040.93

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Solution

The fourth proportional to 115,341.93, 159,171.89 and 65,040.93 is: 89,756.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,341.93 : 159,171.89 = 65,040.93 : x
  2. Step 2: Convert to fraction form
    115,341.93/159,171.89 = 65,040.93/x
  3. Step 3: Cross multiply
    115,341.93x = 159,171.89 × 65,040.93
  4. Step 4: Simplify right side
    115,341.93x = 10,352,687,430.25
  5. Step 5: Solve for x
    x = 10,352,687,430.25/115,341.93
  6. Step 6: Final answer
    x = 89,756.50

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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.