Home / 108,420.20-162,500.70-55,802.60

Finding the Fourth Proportional to 108,420.20, 162,500.70 and 55,802.60

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Solution

The fourth proportional to 108,420.20, 162,500.70 and 55,802.60 is: 83,637.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,420.20 : 162,500.70 = 55,802.60 : x
  2. Step 2: Convert to fraction form
    108,420.20/162,500.70 = 55,802.60/x
  3. Step 3: Cross multiply
    108,420.20x = 162,500.70 × 55,802.60
  4. Step 4: Simplify right side
    108,420.20x = 9,067,961,561.82
  5. Step 5: Solve for x
    x = 9,067,961,561.82/108,420.20
  6. Step 6: Final answer
    x = 83,637.20

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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.