Home / 115,902.36-159,943.32-64,914.66

Finding the Fourth Proportional to 115,902.36, 159,943.32 and 64,914.66

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Solution

The fourth proportional to 115,902.36, 159,943.32 and 64,914.66 is: 89,581.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,902.36 : 159,943.32 = 64,914.66 : x
  2. Step 2: Convert to fraction form
    115,902.36/159,943.32 = 64,914.66/x
  3. Step 3: Cross multiply
    115,902.36x = 159,943.32 × 64,914.66
  4. Step 4: Simplify right side
    115,902.36x = 10,382,666,237.07
  5. Step 5: Solve for x
    x = 10,382,666,237.07/115,902.36
  6. Step 6: Final answer
    x = 89,581.15

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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.