Home / 137,914-190,329.42-103,862.38

Finding the Fourth Proportional to 137,914, 190,329.42 and 103,862.38

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Solution

The fourth proportional to 137,914, 190,329.42 and 103,862.38 is: 143,336.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,914 : 190,329.42 = 103,862.38 : x
  2. Step 2: Convert to fraction form
    137,914/190,329.42 = 103,862.38/x
  3. Step 3: Cross multiply
    137,914x = 190,329.42 × 103,862.38
  4. Step 4: Simplify right side
    137,914x = 19,768,066,545.22
  5. Step 5: Solve for x
    x = 19,768,066,545.22/137,914
  6. Step 6: Final answer
    x = 143,336.18

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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.