Home / 87,492,121.58-131,114,966.78-66,942,282.26

Finding the Fourth Proportional to 87,492,121.58, 131,114,966.78 and 66,942,282.26

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Solution

The fourth proportional to 87,492,121.58, 131,114,966.78 and 66,942,282.26 is: 100,319,148.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,492,121.58 : 131,114,966.78 = 66,942,282.26 : x
  2. Step 2: Convert to fraction form
    87,492,121.58/131,114,966.78 = 66,942,282.26/x
  3. Step 3: Cross multiply
    87,492,121.58x = 131,114,966.78 × 66,942,282.26
  4. Step 4: Simplify right side
    87,492,121.58x = 8,777,135,114,697,283
  5. Step 5: Solve for x
    x = 8,777,135,114,697,283/87,492,121.58
  6. Step 6: Final answer
    x = 100,319,148.24

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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.