Home / 132,136.92-182,289.42-78,424.20

Finding the Fourth Proportional to 132,136.92, 182,289.42 and 78,424.20

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Solution

The fourth proportional to 132,136.92, 182,289.42 and 78,424.20 is: 108,190.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,136.92 : 182,289.42 = 78,424.20 : x
  2. Step 2: Convert to fraction form
    132,136.92/182,289.42 = 78,424.20/x
  3. Step 3: Cross multiply
    132,136.92x = 182,289.42 × 78,424.20
  4. Step 4: Simplify right side
    132,136.92x = 14,295,901,931.96
  5. Step 5: Solve for x
    x = 14,295,901,931.96/132,136.92
  6. Step 6: Final answer
    x = 108,190.06

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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.