Home / 181,635.40-272,258.70-81,778.60

Finding the Fourth Proportional to 181,635.40, 272,258.70 and 81,778.60

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Solution

The fourth proportional to 181,635.40, 272,258.70 and 81,778.60 is: 122,580.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,635.40 : 272,258.70 = 81,778.60 : x
  2. Step 2: Convert to fraction form
    181,635.40/272,258.70 = 81,778.60/x
  3. Step 3: Cross multiply
    181,635.40x = 272,258.70 × 81,778.60
  4. Step 4: Simplify right side
    181,635.40x = 22,264,935,323.82
  5. Step 5: Solve for x
    x = 22,264,935,323.82/181,635.40
  6. Step 6: Final answer
    x = 122,580.37

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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.