Home / 181,669.40-272,309.70-81,812.60

Finding the Fourth Proportional to 181,669.40, 272,309.70 and 81,812.60

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Solution

The fourth proportional to 181,669.40, 272,309.70 and 81,812.60 is: 122,631.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,669.40 : 272,309.70 = 81,812.60 : x
  2. Step 2: Convert to fraction form
    181,669.40/272,309.70 = 81,812.60/x
  3. Step 3: Cross multiply
    181,669.40x = 272,309.70 × 81,812.60
  4. Step 4: Simplify right side
    181,669.40x = 22,278,364,562.22
  5. Step 5: Solve for x
    x = 22,278,364,562.22/181,669.40
  6. Step 6: Final answer
    x = 122,631.35

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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.