Home / 156,930.48-216,660.96-107,955.72

Finding the Fourth Proportional to 156,930.48, 216,660.96 and 107,955.72

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Solution

The fourth proportional to 156,930.48, 216,660.96 and 107,955.72 is: 149,045.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,930.48 : 216,660.96 = 107,955.72 : x
  2. Step 2: Convert to fraction form
    156,930.48/216,660.96 = 107,955.72/x
  3. Step 3: Cross multiply
    156,930.48x = 216,660.96 × 107,955.72
  4. Step 4: Simplify right side
    156,930.48x = 23,389,789,932.69
  5. Step 5: Solve for x
    x = 23,389,789,932.69/156,930.48
  6. Step 6: Final answer
    x = 149,045.55

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1.5x scale

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.