Home / 108,895.12-150,299.76-71,147.68

Finding the Fourth Proportional to 108,895.12, 150,299.76 and 71,147.68

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Solution

The fourth proportional to 108,895.12, 150,299.76 and 71,147.68 is: 98,199.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,895.12 : 150,299.76 = 71,147.68 : x
  2. Step 2: Convert to fraction form
    108,895.12/150,299.76 = 71,147.68/x
  3. Step 3: Cross multiply
    108,895.12x = 150,299.76 × 71,147.68
  4. Step 4: Simplify right side
    108,895.12x = 10,693,479,228.56
  5. Step 5: Solve for x
    x = 10,693,479,228.56/108,895.12
  6. Step 6: Final answer
    x = 98,199.80

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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.