Home / 102,255.66-153,417.20-31,181.22

Finding the Fourth Proportional to 102,255.66, 153,417.20 and 31,181.22

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Solution

The fourth proportional to 102,255.66, 153,417.20 and 31,181.22 is: 46,782.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,255.66 : 153,417.20 = 31,181.22 : x
  2. Step 2: Convert to fraction form
    102,255.66/153,417.20 = 31,181.22/x
  3. Step 3: Cross multiply
    102,255.66x = 153,417.20 × 31,181.22
  4. Step 4: Simplify right side
    102,255.66x = 4,783,735,309.08
  5. Step 5: Solve for x
    x = 4,783,735,309.08/102,255.66
  6. Step 6: Final answer
    x = 46,782.11

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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.