Home / 108,581.22-149,639.13-84,670.02

Finding the Fourth Proportional to 108,581.22, 149,639.13 and 84,670.02

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Solution

The fourth proportional to 108,581.22, 149,639.13 and 84,670.02 is: 116,686.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,581.22 : 149,639.13 = 84,670.02 : x
  2. Step 2: Convert to fraction form
    108,581.22/149,639.13 = 84,670.02/x
  3. Step 3: Cross multiply
    108,581.22x = 149,639.13 × 84,670.02
  4. Step 4: Simplify right side
    108,581.22x = 12,669,948,129.88
  5. Step 5: Solve for x
    x = 12,669,948,129.88/108,581.22
  6. Step 6: Final answer
    x = 116,686.37

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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.