Home / 170,772.20-235,647.76-99,138.24

Finding the Fourth Proportional to 170,772.20, 235,647.76 and 99,138.24

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Solution

The fourth proportional to 170,772.20, 235,647.76 and 99,138.24 is: 136,800.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,772.20 : 235,647.76 = 99,138.24 : x
  2. Step 2: Convert to fraction form
    170,772.20/235,647.76 = 99,138.24/x
  3. Step 3: Cross multiply
    170,772.20x = 235,647.76 × 99,138.24
  4. Step 4: Simplify right side
    170,772.20x = 23,361,704,186.34
  5. Step 5: Solve for x
    x = 23,361,704,186.34/170,772.20
  6. Step 6: Final answer
    x = 136,800.39

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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.