Home / 108,905.55-163,366.53-30,019.09

Finding the Fourth Proportional to 108,905.55, 163,366.53 and 30,019.09

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Solution

The fourth proportional to 108,905.55, 163,366.53 and 30,019.09 is: 45,030.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,905.55 : 163,366.53 = 30,019.09 : x
  2. Step 2: Convert to fraction form
    108,905.55/163,366.53 = 30,019.09/x
  3. Step 3: Cross multiply
    108,905.55x = 163,366.53 × 30,019.09
  4. Step 4: Simplify right side
    108,905.55x = 4,904,114,567.06
  5. Step 5: Solve for x
    x = 4,904,114,567.06/108,905.55
  6. Step 6: Final answer
    x = 45,030.90

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1.5x scale

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.