Home / 102,308.11-153,471.16-31,246.79

Finding the Fourth Proportional to 102,308.11, 153,471.16 and 31,246.79

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Solution

The fourth proportional to 102,308.11, 153,471.16 and 31,246.79 is: 46,872.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,308.11 : 153,471.16 = 31,246.79 : x
  2. Step 2: Convert to fraction form
    102,308.11/153,471.16 = 31,246.79/x
  3. Step 3: Cross multiply
    102,308.11x = 153,471.16 × 31,246.79
  4. Step 4: Simplify right side
    102,308.11x = 4,795,480,379.28
  5. Step 5: Solve for x
    x = 4,795,480,379.28/102,308.11
  6. Step 6: Final answer
    x = 46,872.93

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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.