Home / 136,629.10-204,943.65-99,012.70

Finding the Fourth Proportional to 136,629.10, 204,943.65 and 99,012.70

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Solution

The fourth proportional to 136,629.10, 204,943.65 and 99,012.70 is: 148,519.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,629.10 : 204,943.65 = 99,012.70 : x
  2. Step 2: Convert to fraction form
    136,629.10/204,943.65 = 99,012.70/x
  3. Step 3: Cross multiply
    136,629.10x = 204,943.65 × 99,012.70
  4. Step 4: Simplify right side
    136,629.10x = 20,292,024,134.36
  5. Step 5: Solve for x
    x = 20,292,024,134.36/136,629.10
  6. Step 6: Final answer
    x = 148,519.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.