Home / 156,143.42-215,299.59-124,313.66

Finding the Fourth Proportional to 156,143.42, 215,299.59 and 124,313.66

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Solution

The fourth proportional to 156,143.42, 215,299.59 and 124,313.66 is: 171,410.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,143.42 : 215,299.59 = 124,313.66 : x
  2. Step 2: Convert to fraction form
    156,143.42/215,299.59 = 124,313.66/x
  3. Step 3: Cross multiply
    156,143.42x = 215,299.59 × 124,313.66
  4. Step 4: Simplify right side
    156,143.42x = 26,764,680,029.40
  5. Step 5: Solve for x
    x = 26,764,680,029.40/156,143.42
  6. Step 6: Final answer
    x = 171,410.87

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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.