Home / 108,136.50-149,226.75-60,390.54

Finding the Fourth Proportional to 108,136.50, 149,226.75 and 60,390.54

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Solution

The fourth proportional to 108,136.50, 149,226.75 and 60,390.54 is: 83,338.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,136.50 : 149,226.75 = 60,390.54 : x
  2. Step 2: Convert to fraction form
    108,136.50/149,226.75 = 60,390.54/x
  3. Step 3: Cross multiply
    108,136.50x = 149,226.75 × 60,390.54
  4. Step 4: Simplify right side
    108,136.50x = 9,011,884,014.95
  5. Step 5: Solve for x
    x = 9,011,884,014.95/108,136.50
  6. Step 6: Final answer
    x = 83,338.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.