Home / 108,555.24-149,806.28-66,113.78

Finding the Fourth Proportional to 108,555.24, 149,806.28 and 66,113.78

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Solution

The fourth proportional to 108,555.24, 149,806.28 and 66,113.78 is: 91,237.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,555.24 : 149,806.28 = 66,113.78 : x
  2. Step 2: Convert to fraction form
    108,555.24/149,806.28 = 66,113.78/x
  3. Step 3: Cross multiply
    108,555.24x = 149,806.28 × 66,113.78
  4. Step 4: Simplify right side
    108,555.24x = 9,904,258,358.94
  5. Step 5: Solve for x
    x = 9,904,258,358.94/108,555.24
  6. Step 6: Final answer
    x = 91,237.04

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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.