Home / 108,388.68-149,525.86-70,160.56

Finding the Fourth Proportional to 108,388.68, 149,525.86 and 70,160.56

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Solution

The fourth proportional to 108,388.68, 149,525.86 and 70,160.56 is: 96,788.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,388.68 : 149,525.86 = 70,160.56 : x
  2. Step 2: Convert to fraction form
    108,388.68/149,525.86 = 70,160.56/x
  3. Step 3: Cross multiply
    108,388.68x = 149,525.86 × 70,160.56
  4. Step 4: Simplify right side
    108,388.68x = 10,490,818,072.08
  5. Step 5: Solve for x
    x = 10,490,818,072.08/108,388.68
  6. Step 6: Final answer
    x = 96,788.87

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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.