Home / 129,844.02-179,189.37-75,392.10

Finding the Fourth Proportional to 129,844.02, 179,189.37 and 75,392.10

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Solution

The fourth proportional to 129,844.02, 179,189.37 and 75,392.10 is: 104,043.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,844.02 : 179,189.37 = 75,392.10 : x
  2. Step 2: Convert to fraction form
    129,844.02/179,189.37 = 75,392.10/x
  3. Step 3: Cross multiply
    129,844.02x = 179,189.37 × 75,392.10
  4. Step 4: Simplify right side
    129,844.02x = 13,509,462,901.98
  5. Step 5: Solve for x
    x = 13,509,462,901.98/129,844.02
  6. Step 6: Final answer
    x = 104,043.78

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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.