Home / 170,778.34-235,724.16-99,190.54

Finding the Fourth Proportional to 170,778.34, 235,724.16 and 99,190.54

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Solution

The fourth proportional to 170,778.34, 235,724.16 and 99,190.54 is: 136,912.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,778.34 : 235,724.16 = 99,190.54 : x
  2. Step 2: Convert to fraction form
    170,778.34/235,724.16 = 99,190.54/x
  3. Step 3: Cross multiply
    170,778.34x = 235,724.16 × 99,190.54
  4. Step 4: Simplify right side
    170,778.34x = 23,381,606,721.45
  5. Step 5: Solve for x
    x = 23,381,606,721.45/170,778.34
  6. Step 6: Final answer
    x = 136,912.02

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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.