Home / 108,972.15-163,403.55-49,740.90

Finding the Fourth Proportional to 108,972.15, 163,403.55 and 49,740.90

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Solution

The fourth proportional to 108,972.15, 163,403.55 and 49,740.90 is: 74,586.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,972.15 : 163,403.55 = 49,740.90 : x
  2. Step 2: Convert to fraction form
    108,972.15/163,403.55 = 49,740.90/x
  3. Step 3: Cross multiply
    108,972.15x = 163,403.55 × 49,740.90
  4. Step 4: Simplify right side
    108,972.15x = 8,127,839,640.20
  5. Step 5: Solve for x
    x = 8,127,839,640.20/108,972.15
  6. Step 6: Final answer
    x = 74,586.39

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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.