Home / 156,844.38-216,441.44-87,929.28

Finding the Fourth Proportional to 156,844.38, 216,441.44 and 87,929.28

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Solution

The fourth proportional to 156,844.38, 216,441.44 and 87,929.28 is: 121,340.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,844.38 : 216,441.44 = 87,929.28 : x
  2. Step 2: Convert to fraction form
    156,844.38/216,441.44 = 87,929.28/x
  3. Step 3: Cross multiply
    156,844.38x = 216,441.44 × 87,929.28
  4. Step 4: Simplify right side
    156,844.38x = 19,031,539,757.31
  5. Step 5: Solve for x
    x = 19,031,539,757.31/156,844.38
  6. Step 6: Final answer
    x = 121,340.27

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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.