Home / 119,205.25-164,446.41-86,870.54

Finding the Fourth Proportional to 119,205.25, 164,446.41 and 86,870.54

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Solution

The fourth proportional to 119,205.25, 164,446.41 and 86,870.54 is: 119,839.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,205.25 : 164,446.41 = 86,870.54 : x
  2. Step 2: Convert to fraction form
    119,205.25/164,446.41 = 86,870.54/x
  3. Step 3: Cross multiply
    119,205.25x = 164,446.41 × 86,870.54
  4. Step 4: Simplify right side
    119,205.25x = 14,285,548,437.76
  5. Step 5: Solve for x
    x = 14,285,548,437.76/119,205.25
  6. Step 6: Final answer
    x = 119,839.93

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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.