Home / 137,741.19-190,068.24-77,318.48

Finding the Fourth Proportional to 137,741.19, 190,068.24 and 77,318.48

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Solution

The fourth proportional to 137,741.19, 190,068.24 and 77,318.48 is: 106,691.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,741.19 : 190,068.24 = 77,318.48 : x
  2. Step 2: Convert to fraction form
    137,741.19/190,068.24 = 77,318.48/x
  3. Step 3: Cross multiply
    137,741.19x = 190,068.24 × 77,318.48
  4. Step 4: Simplify right side
    137,741.19x = 14,695,787,505.44
  5. Step 5: Solve for x
    x = 14,695,787,505.44/137,741.19
  6. Step 6: Final answer
    x = 106,691.31

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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.