Home / 156,029.76-215,320.88-84,409.56

Finding the Fourth Proportional to 156,029.76, 215,320.88 and 84,409.56

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Solution

The fourth proportional to 156,029.76, 215,320.88 and 84,409.56 is: 116,485.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,029.76 : 215,320.88 = 84,409.56 : x
  2. Step 2: Convert to fraction form
    156,029.76/215,320.88 = 84,409.56/x
  3. Step 3: Cross multiply
    156,029.76x = 215,320.88 × 84,409.56
  4. Step 4: Simplify right side
    156,029.76x = 18,175,140,950.64
  5. Step 5: Solve for x
    x = 18,175,140,950.64/156,029.76
  6. Step 6: Final answer
    x = 116,485.09

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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.