Home / 137,913-190,328.04-103,861.38

Finding the Fourth Proportional to 137,913, 190,328.04 and 103,861.38

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Solution

The fourth proportional to 137,913, 190,328.04 and 103,861.38 is: 143,334.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,913 : 190,328.04 = 103,861.38 : x
  2. Step 2: Convert to fraction form
    137,913/190,328.04 = 103,861.38/x
  3. Step 3: Cross multiply
    137,913x = 190,328.04 × 103,861.38
  4. Step 4: Simplify right side
    137,913x = 19,767,732,887.10
  5. Step 5: Solve for x
    x = 19,767,732,887.10/137,913
  6. Step 6: Final answer
    x = 143,334.80

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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.