Home / 157,621.20-236,453.40-52,429.20

Finding the Fourth Proportional to 157,621.20, 236,453.40 and 52,429.20

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Solution

The fourth proportional to 157,621.20, 236,453.40 and 52,429.20 is: 78,650.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,621.20 : 236,453.40 = 52,429.20 : x
  2. Step 2: Convert to fraction form
    157,621.20/236,453.40 = 52,429.20/x
  3. Step 3: Cross multiply
    157,621.20x = 236,453.40 × 52,429.20
  4. Step 4: Simplify right side
    157,621.20x = 12,397,062,599.28
  5. Step 5: Solve for x
    x = 12,397,062,599.28/157,621.20
  6. Step 6: Final answer
    x = 78,650.98

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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.