Home / 105,623.20-158,521.20-102,167.20

Finding the Fourth Proportional to 105,623.20, 158,521.20 and 102,167.20

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Solution

The fourth proportional to 105,623.20, 158,521.20 and 102,167.20 is: 153,334.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,623.20 : 158,521.20 = 102,167.20 : x
  2. Step 2: Convert to fraction form
    105,623.20/158,521.20 = 102,167.20/x
  3. Step 3: Cross multiply
    105,623.20x = 158,521.20 × 102,167.20
  4. Step 4: Simplify right side
    105,623.20x = 16,195,667,144.64
  5. Step 5: Solve for x
    x = 16,195,667,144.64/105,623.20
  6. Step 6: Final answer
    x = 153,334.37

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1.5x scale

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.