Home / 108,173.95-161,586.35-80,148.74

Finding the Fourth Proportional to 108,173.95, 161,586.35 and 80,148.74

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Solution

The fourth proportional to 108,173.95, 161,586.35 and 80,148.74 is: 119,723.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,173.95 : 161,586.35 = 80,148.74 : x
  2. Step 2: Convert to fraction form
    108,173.95/161,586.35 = 80,148.74/x
  3. Step 3: Cross multiply
    108,173.95x = 161,586.35 × 80,148.74
  4. Step 4: Simplify right side
    108,173.95x = 12,950,942,352.09
  5. Step 5: Solve for x
    x = 12,950,942,352.09/108,173.95
  6. Step 6: Final answer
    x = 119,723.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.