Home / 181,685.70-272,528.64-81,729.12

Finding the Fourth Proportional to 181,685.70, 272,528.64 and 81,729.12

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Solution

The fourth proportional to 181,685.70, 272,528.64 and 81,729.12 is: 122,593.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,685.70 : 272,528.64 = 81,729.12 : x
  2. Step 2: Convert to fraction form
    181,685.70/272,528.64 = 81,729.12/x
  3. Step 3: Cross multiply
    181,685.70x = 272,528.64 × 81,729.12
  4. Step 4: Simplify right side
    181,685.70x = 22,273,525,922.00
  5. Step 5: Solve for x
    x = 22,273,525,922.00/181,685.70
  6. Step 6: Final answer
    x = 122,593.72

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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.