Home / 128,203.56-176,922.78-70,844.22

Finding the Fourth Proportional to 128,203.56, 176,922.78 and 70,844.22

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Solution

The fourth proportional to 128,203.56, 176,922.78 and 70,844.22 is: 97,766.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,203.56 : 176,922.78 = 70,844.22 : x
  2. Step 2: Convert to fraction form
    128,203.56/176,922.78 = 70,844.22/x
  3. Step 3: Cross multiply
    128,203.56x = 176,922.78 × 70,844.22
  4. Step 4: Simplify right side
    128,203.56x = 12,533,956,349.33
  5. Step 5: Solve for x
    x = 12,533,956,349.33/128,203.56
  6. Step 6: Final answer
    x = 97,766.06

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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.