Home / 156,983.42-216,632.61-89,006.90

Finding the Fourth Proportional to 156,983.42, 216,632.61 and 89,006.90

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Solution

The fourth proportional to 156,983.42, 216,632.61 and 89,006.90 is: 122,826.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,983.42 : 216,632.61 = 89,006.90 : x
  2. Step 2: Convert to fraction form
    156,983.42/216,632.61 = 89,006.90/x
  3. Step 3: Cross multiply
    156,983.42x = 216,632.61 × 89,006.90
  4. Step 4: Simplify right side
    156,983.42x = 19,281,797,055.01
  5. Step 5: Solve for x
    x = 19,281,797,055.01/156,983.42
  6. Step 6: Final answer
    x = 122,826.97

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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.