Home / 122,443.40-183,665.10-82,785.80

Finding the Fourth Proportional to 122,443.40, 183,665.10 and 82,785.80

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Solution

The fourth proportional to 122,443.40, 183,665.10 and 82,785.80 is: 124,178.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,443.40 : 183,665.10 = 82,785.80 : x
  2. Step 2: Convert to fraction form
    122,443.40/183,665.10 = 82,785.80/x
  3. Step 3: Cross multiply
    122,443.40x = 183,665.10 × 82,785.80
  4. Step 4: Simplify right side
    122,443.40x = 15,204,862,235.58
  5. Step 5: Solve for x
    x = 15,204,862,235.58/122,443.40
  6. Step 6: Final answer
    x = 124,178.70

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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.