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Finding the Fourth Proportional to 101,803.76, 152,631.80 and 68,441.12

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Solution

The fourth proportional to 101,803.76, 152,631.80 and 68,441.12 is: 102,612.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,803.76 : 152,631.80 = 68,441.12 : x
  2. Step 2: Convert to fraction form
    101,803.76/152,631.80 = 68,441.12/x
  3. Step 3: Cross multiply
    101,803.76x = 152,631.80 × 68,441.12
  4. Step 4: Simplify right side
    101,803.76x = 10,446,291,339.62
  5. Step 5: Solve for x
    x = 10,446,291,339.62/101,803.76
  6. Step 6: Final answer
    x = 102,612.04

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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.