Home / 108,240.64-149,250.56-69,949.76

Finding the Fourth Proportional to 108,240.64, 149,250.56 and 69,949.76

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Solution

The fourth proportional to 108,240.64, 149,250.56 and 69,949.76 is: 96,452.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,240.64 : 149,250.56 = 69,949.76 : x
  2. Step 2: Convert to fraction form
    108,240.64/149,250.56 = 69,949.76/x
  3. Step 3: Cross multiply
    108,240.64x = 149,250.56 × 69,949.76
  4. Step 4: Simplify right side
    108,240.64x = 10,440,040,851.87
  5. Step 5: Solve for x
    x = 10,440,040,851.87/108,240.64
  6. Step 6: Final answer
    x = 96,452.14

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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.