Home / 103,995.42-156,012.58-41,670.78

Finding the Fourth Proportional to 103,995.42, 156,012.58 and 41,670.78

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Solution

The fourth proportional to 103,995.42, 156,012.58 and 41,670.78 is: 62,513.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,995.42 : 156,012.58 = 41,670.78 : x
  2. Step 2: Convert to fraction form
    103,995.42/156,012.58 = 41,670.78/x
  3. Step 3: Cross multiply
    103,995.42x = 156,012.58 × 41,670.78
  4. Step 4: Simplify right side
    103,995.42x = 6,501,165,898.41
  5. Step 5: Solve for x
    x = 6,501,165,898.41/103,995.42
  6. Step 6: Final answer
    x = 62,513.96

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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.