Home / 103,990.42-156,005.07-41,665.78

Finding the Fourth Proportional to 103,990.42, 156,005.07 and 41,665.78

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Solution

The fourth proportional to 103,990.42, 156,005.07 and 41,665.78 is: 62,506.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,990.42 : 156,005.07 = 41,665.78 : x
  2. Step 2: Convert to fraction form
    103,990.42/156,005.07 = 41,665.78/x
  3. Step 3: Cross multiply
    103,990.42x = 156,005.07 × 41,665.78
  4. Step 4: Simplify right side
    103,990.42x = 6,500,072,925.50
  5. Step 5: Solve for x
    x = 6,500,072,925.50/103,990.42
  6. Step 6: Final answer
    x = 62,506.46

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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.