Home / 199,561.05-275,694.14-130,813.72

Finding the Fourth Proportional to 199,561.05, 275,694.14 and 130,813.72

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Solution

The fourth proportional to 199,561.05, 275,694.14 and 130,813.72 is: 180,719.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,561.05 : 275,694.14 = 130,813.72 : x
  2. Step 2: Convert to fraction form
    199,561.05/275,694.14 = 130,813.72/x
  3. Step 3: Cross multiply
    199,561.05x = 275,694.14 × 130,813.72
  4. Step 4: Simplify right side
    199,561.05x = 36,064,575,673.40
  5. Step 5: Solve for x
    x = 36,064,575,673.40/199,561.05
  6. Step 6: Final answer
    x = 180,719.51

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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.