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Finding the Fourth Proportional to 101,981.70, 152,920.02 and 45,773.62

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Solution

The fourth proportional to 101,981.70, 152,920.02 and 45,773.62 is: 68,636.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,981.70 : 152,920.02 = 45,773.62 : x
  2. Step 2: Convert to fraction form
    101,981.70/152,920.02 = 45,773.62/x
  3. Step 3: Cross multiply
    101,981.70x = 152,920.02 × 45,773.62
  4. Step 4: Simplify right side
    101,981.70x = 6,999,702,885.87
  5. Step 5: Solve for x
    x = 6,999,702,885.87/101,981.70
  6. Step 6: Final answer
    x = 68,636.85

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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.