Home / 156,606.35-216,116.90-84,986.37

Finding the Fourth Proportional to 156,606.35, 216,116.90 and 84,986.37

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Solution

The fourth proportional to 156,606.35, 216,116.90 and 84,986.37 is: 117,281.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,606.35 : 216,116.90 = 84,986.37 : x
  2. Step 2: Convert to fraction form
    156,606.35/216,116.90 = 84,986.37/x
  3. Step 3: Cross multiply
    156,606.35x = 216,116.90 × 84,986.37
  4. Step 4: Simplify right side
    156,606.35x = 18,366,990,826.65
  5. Step 5: Solve for x
    x = 18,366,990,826.65/156,606.35
  6. Step 6: Final answer
    x = 117,281.26

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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.