Home / 130,310.98-179,857.19-79,340.51

Finding the Fourth Proportional to 130,310.98, 179,857.19 and 79,340.51

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Solution

The fourth proportional to 130,310.98, 179,857.19 and 79,340.51 is: 109,506.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,310.98 : 179,857.19 = 79,340.51 : x
  2. Step 2: Convert to fraction form
    130,310.98/179,857.19 = 79,340.51/x
  3. Step 3: Cross multiply
    130,310.98x = 179,857.19 × 79,340.51
  4. Step 4: Simplify right side
    130,310.98x = 14,269,961,829.76
  5. Step 5: Solve for x
    x = 14,269,961,829.76/130,310.98
  6. Step 6: Final answer
    x = 109,506.98

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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.