Home / 199,891.26-275,823.30-128,368.14

Finding the Fourth Proportional to 199,891.26, 275,823.30 and 128,368.14

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Solution

The fourth proportional to 199,891.26, 275,823.30 and 128,368.14 is: 177,130.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,891.26 : 275,823.30 = 128,368.14 : x
  2. Step 2: Convert to fraction form
    199,891.26/275,823.30 = 128,368.14/x
  3. Step 3: Cross multiply
    199,891.26x = 275,823.30 × 128,368.14
  4. Step 4: Simplify right side
    199,891.26x = 35,406,923,989.66
  5. Step 5: Solve for x
    x = 35,406,923,989.66/199,891.26
  6. Step 6: Final answer
    x = 177,130.93

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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.