Home / 108,368.80-162,545.10-45,172.60

Finding the Fourth Proportional to 108,368.80, 162,545.10 and 45,172.60

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Solution

The fourth proportional to 108,368.80, 162,545.10 and 45,172.60 is: 67,755.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,368.80 : 162,545.10 = 45,172.60 : x
  2. Step 2: Convert to fraction form
    108,368.80/162,545.10 = 45,172.60/x
  3. Step 3: Cross multiply
    108,368.80x = 162,545.10 × 45,172.60
  4. Step 4: Simplify right side
    108,368.80x = 7,342,584,784.26
  5. Step 5: Solve for x
    x = 7,342,584,784.26/108,368.80
  6. Step 6: Final answer
    x = 67,755.52

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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.