Home / 142,854.58-197,141.12-82,437.76

Finding the Fourth Proportional to 142,854.58, 197,141.12 and 82,437.76

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Solution

The fourth proportional to 142,854.58, 197,141.12 and 82,437.76 is: 113,765.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,854.58 : 197,141.12 = 82,437.76 : x
  2. Step 2: Convert to fraction form
    142,854.58/197,141.12 = 82,437.76/x
  3. Step 3: Cross multiply
    142,854.58x = 197,141.12 × 82,437.76
  4. Step 4: Simplify right side
    142,854.58x = 16,251,872,336.69
  5. Step 5: Solve for x
    x = 16,251,872,336.69/142,854.58
  6. Step 6: Final answer
    x = 113,765.15

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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.