Home / 102,203.10-153,305.18-31,126.37

Finding the Fourth Proportional to 102,203.10, 153,305.18 and 31,126.37

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Solution

The fourth proportional to 102,203.10, 153,305.18 and 31,126.37 is: 46,689.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,203.10 : 153,305.18 = 31,126.37 : x
  2. Step 2: Convert to fraction form
    102,203.10/153,305.18 = 31,126.37/x
  3. Step 3: Cross multiply
    102,203.10x = 153,305.18 × 31,126.37
  4. Step 4: Simplify right side
    102,203.10x = 4,771,832,833.44
  5. Step 5: Solve for x
    x = 4,771,832,833.44/102,203.10
  6. Step 6: Final answer
    x = 46,689.71

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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.