Home / 187,234.70-280,852.05-112,439.30

Finding the Fourth Proportional to 187,234.70, 280,852.05 and 112,439.30

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Solution

The fourth proportional to 187,234.70, 280,852.05 and 112,439.30 is: 168,658.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,234.70 : 280,852.05 = 112,439.30 : x
  2. Step 2: Convert to fraction form
    187,234.70/280,852.05 = 112,439.30/x
  3. Step 3: Cross multiply
    187,234.70x = 280,852.05 × 112,439.30
  4. Step 4: Simplify right side
    187,234.70x = 31,578,807,905.57
  5. Step 5: Solve for x
    x = 31,578,807,905.57/187,234.70
  6. Step 6: Final answer
    x = 168,658.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.