Home / 156,388.64-215,811.06-92,688.62

Finding the Fourth Proportional to 156,388.64, 215,811.06 and 92,688.62

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Solution

The fourth proportional to 156,388.64, 215,811.06 and 92,688.62 is: 127,907.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,388.64 : 215,811.06 = 92,688.62 : x
  2. Step 2: Convert to fraction form
    156,388.64/215,811.06 = 92,688.62/x
  3. Step 3: Cross multiply
    156,388.64x = 215,811.06 × 92,688.62
  4. Step 4: Simplify right side
    156,388.64x = 20,003,229,332.14
  5. Step 5: Solve for x
    x = 20,003,229,332.14/156,388.64
  6. Step 6: Final answer
    x = 127,907.18

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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.