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Finding the Fourth Proportional to 103,756.86, 155,646.09 and 39,714.93

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Solution

The fourth proportional to 103,756.86, 155,646.09 and 39,714.93 is: 59,576.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,756.86 : 155,646.09 = 39,714.93 : x
  2. Step 2: Convert to fraction form
    103,756.86/155,646.09 = 39,714.93/x
  3. Step 3: Cross multiply
    103,756.86x = 155,646.09 × 39,714.93
  4. Step 4: Simplify right side
    103,756.86x = 6,181,473,569.12
  5. Step 5: Solve for x
    x = 6,181,473,569.12/103,756.86
  6. Step 6: Final answer
    x = 59,576.53

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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.