Home / 108,905.64-163,366.65-30,019.19

Finding the Fourth Proportional to 108,905.64, 163,366.65 and 30,019.19

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Solution

The fourth proportional to 108,905.64, 163,366.65 and 30,019.19 is: 45,031.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,905.64 : 163,366.65 = 30,019.19 : x
  2. Step 2: Convert to fraction form
    108,905.64/163,366.65 = 30,019.19/x
  3. Step 3: Cross multiply
    108,905.64x = 163,366.65 × 30,019.19
  4. Step 4: Simplify right side
    108,905.64x = 4,904,133,689.18
  5. Step 5: Solve for x
    x = 4,904,133,689.18/108,905.64
  6. Step 6: Final answer
    x = 45,031.04

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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.