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Finding the Fourth Proportional to 115,344.75, 159,185.48 and 65,053.47

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Solution

The fourth proportional to 115,344.75, 159,185.48 and 65,053.47 is: 89,779.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,344.75 : 159,185.48 = 65,053.47 : x
  2. Step 2: Convert to fraction form
    115,344.75/159,185.48 = 65,053.47/x
  3. Step 3: Cross multiply
    115,344.75x = 159,185.48 × 65,053.47
  4. Step 4: Simplify right side
    115,344.75x = 10,355,567,522.35
  5. Step 5: Solve for x
    x = 10,355,567,522.35/115,344.75
  6. Step 6: Final answer
    x = 89,779.27

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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.