Home / 108,485.59-162,754.36-45,270.55

Finding the Fourth Proportional to 108,485.59, 162,754.36 and 45,270.55

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Solution

The fourth proportional to 108,485.59, 162,754.36 and 45,270.55 is: 67,916.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,485.59 : 162,754.36 = 45,270.55 : x
  2. Step 2: Convert to fraction form
    108,485.59/162,754.36 = 45,270.55/x
  3. Step 3: Cross multiply
    108,485.59x = 162,754.36 × 45,270.55
  4. Step 4: Simplify right side
    108,485.59x = 7,367,979,392.10
  5. Step 5: Solve for x
    x = 7,367,979,392.10/108,485.59
  6. Step 6: Final answer
    x = 67,916.66

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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.