Home / 156,942.78-216,628.47-106,670.94

Finding the Fourth Proportional to 156,942.78, 216,628.47 and 106,670.94

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Solution

The fourth proportional to 156,942.78, 216,628.47 and 106,670.94 is: 147,238.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,942.78 : 216,628.47 = 106,670.94 : x
  2. Step 2: Convert to fraction form
    156,942.78/216,628.47 = 106,670.94/x
  3. Step 3: Cross multiply
    156,942.78x = 216,628.47 × 106,670.94
  4. Step 4: Simplify right side
    156,942.78x = 23,107,962,525.66
  5. Step 5: Solve for x
    x = 23,107,962,525.66/156,942.78
  6. Step 6: Final answer
    x = 147,238.14

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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.