Home / 108,328.55-149,530.98-74,449.17

Finding the Fourth Proportional to 108,328.55, 149,530.98 and 74,449.17

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Solution

The fourth proportional to 108,328.55, 149,530.98 and 74,449.17 is: 102,765.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,328.55 : 149,530.98 = 74,449.17 : x
  2. Step 2: Convert to fraction form
    108,328.55/149,530.98 = 74,449.17/x
  3. Step 3: Cross multiply
    108,328.55x = 149,530.98 × 74,449.17
  4. Step 4: Simplify right side
    108,328.55x = 11,132,457,350.29
  5. Step 5: Solve for x
    x = 11,132,457,350.29/108,328.55
  6. Step 6: Final answer
    x = 102,765.69

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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.