Home / 156,979.28-216,678.84-106,707.44

Finding the Fourth Proportional to 156,979.28, 216,678.84 and 106,707.44

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Solution

The fourth proportional to 156,979.28, 216,678.84 and 106,707.44 is: 147,288.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,979.28 : 216,678.84 = 106,707.44 : x
  2. Step 2: Convert to fraction form
    156,979.28/216,678.84 = 106,707.44/x
  3. Step 3: Cross multiply
    156,979.28x = 216,678.84 × 106,707.44
  4. Step 4: Simplify right side
    156,979.28x = 23,121,244,318.57
  5. Step 5: Solve for x
    x = 23,121,244,318.57/156,979.28
  6. Step 6: Final answer
    x = 147,288.51

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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.