Home / 156,384.81-215,811.42-84,764.76

Finding the Fourth Proportional to 156,384.81, 215,811.42 and 84,764.76

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Solution

The fourth proportional to 156,384.81, 215,811.42 and 84,764.76 is: 116,975.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,384.81 : 215,811.42 = 84,764.76 : x
  2. Step 2: Convert to fraction form
    156,384.81/215,811.42 = 84,764.76/x
  3. Step 3: Cross multiply
    156,384.81x = 215,811.42 × 84,764.76
  4. Step 4: Simplify right side
    156,384.81x = 18,293,203,221.56
  5. Step 5: Solve for x
    x = 18,293,203,221.56/156,384.81
  6. Step 6: Final answer
    x = 116,975.58

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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.