Home / 157,854.20-236,522.10-131,415.80

Finding the Fourth Proportional to 157,854.20, 236,522.10 and 131,415.80

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Solution

The fourth proportional to 157,854.20, 236,522.10 and 131,415.80 is: 196,907.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,854.20 : 236,522.10 = 131,415.80 : x
  2. Step 2: Convert to fraction form
    157,854.20/236,522.10 = 131,415.80/x
  3. Step 3: Cross multiply
    157,854.20x = 236,522.10 × 131,415.80
  4. Step 4: Simplify right side
    157,854.20x = 31,082,740,989.18
  5. Step 5: Solve for x
    x = 31,082,740,989.18/157,854.20
  6. Step 6: Final answer
    x = 196,907.91

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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.