Home / 156,907.08-216,533.22-85,287.27

Finding the Fourth Proportional to 156,907.08, 216,533.22 and 85,287.27

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Solution

The fourth proportional to 156,907.08, 216,533.22 and 85,287.27 is: 117,697.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,907.08 : 216,533.22 = 85,287.27 : x
  2. Step 2: Convert to fraction form
    156,907.08/216,533.22 = 85,287.27/x
  3. Step 3: Cross multiply
    156,907.08x = 216,533.22 × 85,287.27
  4. Step 4: Simplify right side
    156,907.08x = 18,467,527,198.11
  5. Step 5: Solve for x
    x = 18,467,527,198.11/156,907.08
  6. Step 6: Final answer
    x = 117,697.22

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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.