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Finding the Fourth Proportional to 115,356.93, 159,192.63 and 65,055.93

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Solution

The fourth proportional to 115,356.93, 159,192.63 and 65,055.93 is: 89,777.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,356.93 : 159,192.63 = 65,055.93 : x
  2. Step 2: Convert to fraction form
    115,356.93/159,192.63 = 65,055.93/x
  3. Step 3: Cross multiply
    115,356.93x = 159,192.63 × 65,055.93
  4. Step 4: Simplify right side
    115,356.93x = 10,356,424,593.80
  5. Step 5: Solve for x
    x = 10,356,424,593.80/115,356.93
  6. Step 6: Final answer
    x = 89,777.22

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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.