Home / 137,908.58-190,267.79-77,470.83

Finding the Fourth Proportional to 137,908.58, 190,267.79 and 77,470.83

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Solution

The fourth proportional to 137,908.58, 190,267.79 and 77,470.83 is: 106,883.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,908.58 : 190,267.79 = 77,470.83 : x
  2. Step 2: Convert to fraction form
    137,908.58/190,267.79 = 77,470.83/x
  3. Step 3: Cross multiply
    137,908.58x = 190,267.79 × 77,470.83
  4. Step 4: Simplify right side
    137,908.58x = 14,740,203,226.21
  5. Step 5: Solve for x
    x = 14,740,203,226.21/137,908.58
  6. Step 6: Final answer
    x = 106,883.88

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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.