Home / 163,905.80-245,826.30-79,665.80

Finding the Fourth Proportional to 163,905.80, 245,826.30 and 79,665.80

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Solution

The fourth proportional to 163,905.80, 245,826.30 and 79,665.80 is: 119,482.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,905.80 : 245,826.30 = 79,665.80 : x
  2. Step 2: Convert to fraction form
    163,905.80/245,826.30 = 79,665.80/x
  3. Step 3: Cross multiply
    163,905.80x = 245,826.30 × 79,665.80
  4. Step 4: Simplify right side
    163,905.80x = 19,583,948,850.54
  5. Step 5: Solve for x
    x = 19,583,948,850.54/163,905.80
  6. Step 6: Final answer
    x = 119,482.95

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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.