Home / 137,814.24-190,168.80-77,391.44

Finding the Fourth Proportional to 137,814.24, 190,168.80 and 77,391.44

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Solution

The fourth proportional to 137,814.24, 190,168.80 and 77,391.44 is: 106,791.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,814.24 : 190,168.80 = 77,391.44 : x
  2. Step 2: Convert to fraction form
    137,814.24/190,168.80 = 77,391.44/x
  3. Step 3: Cross multiply
    137,814.24x = 190,168.80 × 77,391.44
  4. Step 4: Simplify right side
    137,814.24x = 14,717,437,275.07
  5. Step 5: Solve for x
    x = 14,717,437,275.07/137,814.24
  6. Step 6: Final answer
    x = 106,791.85

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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.