Home / 161,440.24-242,141.45-43,120.81

Finding the Fourth Proportional to 161,440.24, 242,141.45 and 43,120.81

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Solution

The fourth proportional to 161,440.24, 242,141.45 and 43,120.81 is: 64,676.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,440.24 : 242,141.45 = 43,120.81 : x
  2. Step 2: Convert to fraction form
    161,440.24/242,141.45 = 43,120.81/x
  3. Step 3: Cross multiply
    161,440.24x = 242,141.45 × 43,120.81
  4. Step 4: Simplify right side
    161,440.24x = 10,441,334,426.16
  5. Step 5: Solve for x
    x = 10,441,334,426.16/161,440.24
  6. Step 6: Final answer
    x = 64,676.16

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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.