Home / 108,211.06-149,321.55-60,457.78

Finding the Fourth Proportional to 108,211.06, 149,321.55 and 60,457.78

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Solution

The fourth proportional to 108,211.06, 149,321.55 and 60,457.78 is: 83,426.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,211.06 : 149,321.55 = 60,457.78 : x
  2. Step 2: Convert to fraction form
    108,211.06/149,321.55 = 60,457.78/x
  3. Step 3: Cross multiply
    108,211.06x = 149,321.55 × 60,457.78
  4. Step 4: Simplify right side
    108,211.06x = 9,027,649,419.16
  5. Step 5: Solve for x
    x = 9,027,649,419.16/108,211.06
  6. Step 6: Final answer
    x = 83,426.31

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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.