Home / 115,810.74-159,819.37-64,824.48

Finding the Fourth Proportional to 115,810.74, 159,819.37 and 64,824.48

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Solution

The fourth proportional to 115,810.74, 159,819.37 and 64,824.48 is: 89,458.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,810.74 : 159,819.37 = 64,824.48 : x
  2. Step 2: Convert to fraction form
    115,810.74/159,819.37 = 64,824.48/x
  3. Step 3: Cross multiply
    115,810.74x = 159,819.37 × 64,824.48
  4. Step 4: Simplify right side
    115,810.74x = 10,360,207,124.94
  5. Step 5: Solve for x
    x = 10,360,207,124.94/115,810.74
  6. Step 6: Final answer
    x = 89,458.09

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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.