Home / 115,140.24-158,887.44-64,836

Finding the Fourth Proportional to 115,140.24, 158,887.44 and 64,836

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Solution

The fourth proportional to 115,140.24, 158,887.44 and 64,836 is: 89,470.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,140.24 : 158,887.44 = 64,836 : x
  2. Step 2: Convert to fraction form
    115,140.24/158,887.44 = 64,836/x
  3. Step 3: Cross multiply
    115,140.24x = 158,887.44 × 64,836
  4. Step 4: Simplify right side
    115,140.24x = 10,301,626,059.84
  5. Step 5: Solve for x
    x = 10,301,626,059.84/115,140.24
  6. Step 6: Final answer
    x = 89,470.25

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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.