Home / 132,143.10-197,886.60-105,899.10

Finding the Fourth Proportional to 132,143.10, 197,886.60 and 105,899.10

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Solution

The fourth proportional to 132,143.10, 197,886.60 and 105,899.10 is: 158,585.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,143.10 : 197,886.60 = 105,899.10 : x
  2. Step 2: Convert to fraction form
    132,143.10/197,886.60 = 105,899.10/x
  3. Step 3: Cross multiply
    132,143.10x = 197,886.60 × 105,899.10
  4. Step 4: Simplify right side
    132,143.10x = 20,956,012,842.06
  5. Step 5: Solve for x
    x = 20,956,012,842.06/132,143.10
  6. Step 6: Final answer
    x = 158,585.75

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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.