Home / 156,918.06-216,542.32-85,296.24

Finding the Fourth Proportional to 156,918.06, 216,542.32 and 85,296.24

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Solution

The fourth proportional to 156,918.06, 216,542.32 and 85,296.24 is: 117,706.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,918.06 : 216,542.32 = 85,296.24 : x
  2. Step 2: Convert to fraction form
    156,918.06/216,542.32 = 85,296.24/x
  3. Step 3: Cross multiply
    156,918.06x = 216,542.32 × 85,296.24
  4. Step 4: Simplify right side
    156,918.06x = 18,470,245,696.88
  5. Step 5: Solve for x
    x = 18,470,245,696.88/156,918.06
  6. Step 6: Final answer
    x = 117,706.31

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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.