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Finding the Fourth Proportional to 159,453.84, 239,063.64 and 76,406.16

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Solution

The fourth proportional to 159,453.84, 239,063.64 and 76,406.16 is: 114,553.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,453.84 : 239,063.64 = 76,406.16 : x
  2. Step 2: Convert to fraction form
    159,453.84/239,063.64 = 76,406.16/x
  3. Step 3: Cross multiply
    159,453.84x = 239,063.64 × 76,406.16
  4. Step 4: Simplify right side
    159,453.84x = 18,265,934,728.02
  5. Step 5: Solve for x
    x = 18,265,934,728.02/159,453.84
  6. Step 6: Final answer
    x = 114,553.12

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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.