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Finding the Fourth Proportional to 101,492.87, 152,197.67 and 30,390.45

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Solution

The fourth proportional to 101,492.87, 152,197.67 and 30,390.45 is: 45,573.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,492.87 : 152,197.67 = 30,390.45 : x
  2. Step 2: Convert to fraction form
    101,492.87/152,197.67 = 30,390.45/x
  3. Step 3: Cross multiply
    101,492.87x = 152,197.67 × 30,390.45
  4. Step 4: Simplify right side
    101,492.87x = 4,625,355,528.30
  5. Step 5: Solve for x
    x = 4,625,355,528.30/101,492.87
  6. Step 6: Final answer
    x = 45,573.21

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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.