Home / 142,853.58-197,139.74-82,436.76

Finding the Fourth Proportional to 142,853.58, 197,139.74 and 82,436.76

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Solution

The fourth proportional to 142,853.58, 197,139.74 and 82,436.76 is: 113,763.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,853.58 : 197,139.74 = 82,436.76 : x
  2. Step 2: Convert to fraction form
    142,853.58/197,139.74 = 82,436.76/x
  3. Step 3: Cross multiply
    142,853.58x = 197,139.74 × 82,436.76
  4. Step 4: Simplify right side
    142,853.58x = 16,251,561,020.66
  5. Step 5: Solve for x
    x = 16,251,561,020.66/142,853.58
  6. Step 6: Final answer
    x = 113,763.76

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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.