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Finding the Fourth Proportional to 115,335.99, 159,229.06 and 75,029.58

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Solution

The fourth proportional to 115,335.99, 159,229.06 and 75,029.58 is: 103,583.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,335.99 : 159,229.06 = 75,029.58 : x
  2. Step 2: Convert to fraction form
    115,335.99/159,229.06 = 75,029.58/x
  3. Step 3: Cross multiply
    115,335.99x = 159,229.06 × 75,029.58
  4. Step 4: Simplify right side
    115,335.99x = 11,946,889,495.59
  5. Step 5: Solve for x
    x = 11,946,889,495.59/115,335.99
  6. Step 6: Final answer
    x = 103,583.36

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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.