Home / 137,944.80-190,349.64-77,505.84

Finding the Fourth Proportional to 137,944.80, 190,349.64 and 77,505.84

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Solution

The fourth proportional to 137,944.80, 190,349.64 and 77,505.84 is: 106,950.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,944.80 : 190,349.64 = 77,505.84 : x
  2. Step 2: Convert to fraction form
    137,944.80/190,349.64 = 77,505.84/x
  3. Step 3: Cross multiply
    137,944.80x = 190,349.64 × 77,505.84
  4. Step 4: Simplify right side
    137,944.80x = 14,753,208,741.90
  5. Step 5: Solve for x
    x = 14,753,208,741.90/137,944.80
  6. Step 6: Final answer
    x = 106,950.09

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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.