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Finding the Fourth Proportional to 150,114.88, 207,156.70 and 82,130.88

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Solution

The fourth proportional to 150,114.88, 207,156.70 and 82,130.88 is: 113,339.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,114.88 : 207,156.70 = 82,130.88 : x
  2. Step 2: Convert to fraction form
    150,114.88/207,156.70 = 82,130.88/x
  3. Step 3: Cross multiply
    150,114.88x = 207,156.70 × 82,130.88
  4. Step 4: Simplify right side
    150,114.88x = 17,013,961,290.35
  5. Step 5: Solve for x
    x = 17,013,961,290.35/150,114.88
  6. Step 6: Final answer
    x = 113,339.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.