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Finding the Fourth Proportional to 103,435.60, 155,116.95 and 36,877.90

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Solution

The fourth proportional to 103,435.60, 155,116.95 and 36,877.90 is: 55,303.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,435.60 : 155,116.95 = 36,877.90 : x
  2. Step 2: Convert to fraction form
    103,435.60/155,116.95 = 36,877.90/x
  3. Step 3: Cross multiply
    103,435.60x = 155,116.95 × 36,877.90
  4. Step 4: Simplify right side
    103,435.60x = 5,720,387,370.41
  5. Step 5: Solve for x
    x = 5,720,387,370.41/103,435.60
  6. Step 6: Final answer
    x = 55,303.85

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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.