Home / 105,429.80-158,166.30-35,359.40

Finding the Fourth Proportional to 105,429.80, 158,166.30 and 35,359.40

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Solution

The fourth proportional to 105,429.80, 158,166.30 and 35,359.40 is: 53,046.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,429.80 : 158,166.30 = 35,359.40 : x
  2. Step 2: Convert to fraction form
    105,429.80/158,166.30 = 35,359.40/x
  3. Step 3: Cross multiply
    105,429.80x = 158,166.30 × 35,359.40
  4. Step 4: Simplify right side
    105,429.80x = 5,592,665,468.22
  5. Step 5: Solve for x
    x = 5,592,665,468.22/105,429.80
  6. Step 6: Final answer
    x = 53,046.34

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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.