Home / 185,384.46-278,098.56-138,932.58

Finding the Fourth Proportional to 185,384.46, 278,098.56 and 138,932.58

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Solution

The fourth proportional to 185,384.46, 278,098.56 and 138,932.58 is: 208,415.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,384.46 : 278,098.56 = 138,932.58 : x
  2. Step 2: Convert to fraction form
    185,384.46/278,098.56 = 138,932.58/x
  3. Step 3: Cross multiply
    185,384.46x = 278,098.56 × 138,932.58
  4. Step 4: Simplify right side
    185,384.46x = 38,636,950,435.08
  5. Step 5: Solve for x
    x = 38,636,950,435.08/185,384.46
  6. Step 6: Final answer
    x = 208,415.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.