Home / 108,430.20-162,515.70-55,812.60

Finding the Fourth Proportional to 108,430.20, 162,515.70 and 55,812.60

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Solution

The fourth proportional to 108,430.20, 162,515.70 and 55,812.60 is: 83,652.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,430.20 : 162,515.70 = 55,812.60 : x
  2. Step 2: Convert to fraction form
    108,430.20/162,515.70 = 55,812.60/x
  3. Step 3: Cross multiply
    108,430.20x = 162,515.70 × 55,812.60
  4. Step 4: Simplify right side
    108,430.20x = 9,070,423,757.82
  5. Step 5: Solve for x
    x = 9,070,423,757.82/108,430.20
  6. Step 6: Final answer
    x = 83,652.19

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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.