Home / 105,601.20-158,488.20-102,145.20

Finding the Fourth Proportional to 105,601.20, 158,488.20 and 102,145.20

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Solution

The fourth proportional to 105,601.20, 158,488.20 and 102,145.20 is: 153,301.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,601.20 : 158,488.20 = 102,145.20 : x
  2. Step 2: Convert to fraction form
    105,601.20/158,488.20 = 102,145.20/x
  3. Step 3: Cross multiply
    105,601.20x = 158,488.20 × 102,145.20
  4. Step 4: Simplify right side
    105,601.20x = 16,188,808,886.64
  5. Step 5: Solve for x
    x = 16,188,808,886.64/105,601.20
  6. Step 6: Final answer
    x = 153,301.37

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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.