Home / 137,741.44-190,068.59-77,318.73

Finding the Fourth Proportional to 137,741.44, 190,068.59 and 77,318.73

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Solution

The fourth proportional to 137,741.44, 190,068.59 and 77,318.73 is: 106,691.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,741.44 : 190,068.59 = 77,318.73 : x
  2. Step 2: Convert to fraction form
    137,741.44/190,068.59 = 77,318.73/x
  3. Step 3: Cross multiply
    137,741.44x = 190,068.59 × 77,318.73
  4. Step 4: Simplify right side
    137,741.44x = 14,695,861,605.10
  5. Step 5: Solve for x
    x = 14,695,861,605.10/137,741.44
  6. Step 6: Final answer
    x = 106,691.65

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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.