Home / 145,140.32-217,243.92-108,956

Finding the Fourth Proportional to 145,140.32, 217,243.92 and 108,956

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Solution

The fourth proportional to 145,140.32, 217,243.92 and 108,956 is: 163,083.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,140.32 : 217,243.92 = 108,956 : x
  2. Step 2: Convert to fraction form
    145,140.32/217,243.92 = 108,956/x
  3. Step 3: Cross multiply
    145,140.32x = 217,243.92 × 108,956
  4. Step 4: Simplify right side
    145,140.32x = 23,670,028,547.52
  5. Step 5: Solve for x
    x = 23,670,028,547.52/145,140.32
  6. Step 6: Final answer
    x = 163,083.76

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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.